50道初一经典解方程或计算题 求50道初一解方程计算题，最好是去分母，去括号的

\u521d\u4e00\u89e3\u65b9\u7a0b\u7ec3\u4e60\u9898\u53ca\u7b54\u684850\u9053

1. 2(x-2)-3(4x-1)=9(1-x)
2. 11x+64-2x=100-9x
3. 15-(8-5x)=7x+(4-3x)
4. 3(x-7)-2[9-4(2-x)]=22
5. 3/2[2/3(1/4x-1)-2]-x=2
6. 2(x-2)+2=x+1
7. 0.4(x-0.2)+1.5=0.7x-0.38
8. 30x-10(10-x)=100
9. 4(x+2)=5(x-2)
10. 120-4(x+5)=25
11. 15x+863-65x=54
12. 12.3(x-2)+1=x-(2x-1)
13. 11x+64-2x=100-9x
14. 14.59+x-25.31=0
15. x-48.32+78.51=80
16. 820-16x=45.5\u00d78
17. (x-6)\u00d77=2x
18. 3x+x=18
19. 0.8+3.2=7.2
20. 12.5-3x=6.5
21. 1.2(x-0.64)=0.54
22. x+12.5=3.5x
23. 8x-22.8=1.2
24. 1\ 50x+10=60
25. 2\ 60x-30=20
26. 3\ 3^20x+50=110
27. 4\ 2x=5x-3
28. 5\ 90=10+x
29. 6\ 90+20x=30
30. 7\ 691+3x=700
[1]2\u2014\uff081\u2014y\uff09=\u20142
2-1+y=--2
y=-2-2+1=-3

\uff082\uff095\u2014\uff08x\u20141\uff09=3\u20143x
5-x+1=3-3x
2x=3-1-5
2x=-3
x=-1.5

\uff083\uff093\u20142\uff082x+1\uff09=2\uff08x\u20143\uff09
3-4x-2=2x-6
6x=3-2+6
6x=7
x=7/6

\uff084\uff094x\u20143\uff0820\u2014x\uff09=6x\u20147\uff089\u2014x\uff09
4x-60+3x=6x-63+7x
7x-60=13x-63
6x=3
x=0.5

\uff085\uff0912\uff082\u20143x\uff09=4x+4
24-36x=4x+4
40x=20
x=0.5

\uff086\uff092\uff08200\u201415x\uff09=70+25x
400-30x=70+25x
55x=330
x=6

\uff087\uff094x\u20143\uff0820\u2014x\uff09+4=0
4x-60+3x+4=0
7x=60-4=56
x=8

\uff088\uff091\u20143\uff088\u2014x\uff09=\u20142\uff0815\u20142x\uff09
1-24+3x=-30+4x
x=1-24+30
x=7
\uff089\uff092-(1-y)=-2
2-1+y=-2
1+y=-2
y=-3

\uff0810\uff095-\uff08x-1)=3-3x
5-x+1=3-3x
6-x=3-3x
-x+3x=3-6
x=-1.5

. 3/7 \u00d7 49/9 - 4/3
2. 8/9 \u00d7 15/36 + 1/27
3. 12\u00d7 5/6 \u2013 2/9 \u00d73
4. 8\u00d7 5/4 + 1/4
5. 6\u00f7 3/8 \u2013 3/8 \u00f76
6. 4/7 \u00d7 5/9 + 3/7 \u00d7 5/9
7. 5/2 -\uff08 3/2 + 4/5 \uff09
8. 7/8 + \uff08 1/8 + 1/9 \uff09
9. 9 \u00d7 5/6 + 5/6
10. 3/4 \u00d7 8/9 - 1/3
11. 7 \u00d7 5/49 + 3/14
12. 6 \u00d7\uff08 1/2 + 2/3 \uff09
13. 8 \u00d7 4/5 + 8 \u00d7 11/5
14. 31 \u00d7 5/6 \u2013 5/6
15. 9/7 - \uff08 2/7 \u2013 10/21 \uff09
16. 5/9 \u00d7 18 \u2013 14 \u00d7 2/7
17. 4/5 \u00d7 25/16 + 2/3 \u00d7 3/4
18. 14 \u00d7 8/7 \u2013 5/6 \u00d7 12/15
19. 17/32 \u2013 3/4 \u00d7 9/24
20. 3 \u00d7 2/9 + 1/3
21. 5/7 \u00d7 3/25 + 3/7
22. 3/14 \u00d7\u00d7 2/3 + 1/6
23. 1/5 \u00d7 2/3 + 5/6
24. 9/22 + 1/11 \u00f7 1/2
25. 5/3 \u00d7 11/5 + 4/3
26. 45 \u00d7 2/3 + 1/3 \u00d7 15
27. 7/19 + 12/19 \u00d7 5/6
28. 1/4 + 3/4 \u00f7 2/3
29. 8/7 \u00d7 21/16 + 1/2
30. 101 \u00d7 1/5 \u2013 1/5 \u00d7 21
31.50\uff0b160\u00f740
32.120-144\u00f718+35
33.347+45\u00d72-4160\u00f752
34\uff0858+37\uff09\u00f7\uff0864-9\u00d75\uff09
35.95\u00f7\uff0864-45\uff09
36.178-145\u00f75\u00d76+42

37.812-700\u00f7\uff089+31\u00d711\uff09
38.85+14\u00d7\uff0814+208\u00f726\uff09
39.\uff08284+16\uff09\u00d7\uff08512-8208\u00f718\uff09
40.120-36\u00d74\u00f718+35
41.\uff0858+37\uff09\u00f7\uff0864-9\u00d75\uff09
42.(6.8-6.8\u00d70.55)\u00f78.5
43.0.12\u00d7 4.8\u00f70.12\u00d74.8
44.\uff083.2\u00d71.5+2.5\uff09\u00f71.6 \uff082\uff093.2\u00d7\uff081.5+2.5\uff09\u00f71.6
45.6-1.6\u00f74= 5.38+7.85-5.37=
46.7.2\u00f70.8-1.2\u00d75= 6-1.19\u00d73-0.43=
47.6.5\u00d7\uff084.8-1.2\u00d74\uff09= 0.68\u00d71.9+0.32\u00d71.9
48.10.15-10.75\u00d70.4-5.7
49.5.8\u00d7\uff083.87-0.13\uff09+4.2\u00d73.74
50.32.52-\uff086+9.728\u00f73.2\uff09\u00d72.






3X+5X=48 14X-8X=12 6*5+2X=44

20X-50=50 28+6X=88 32-22X=10

24-3X=3 10X*\uff085+1\uff09=60 99X=100-X

X+3=18 X-6=12 56-2X=20

4y+2=6 x+32=76 3x+6=18

16+8x=40 2x-8=8 4x-3*9=29

8x-3x=105 x-6*5=42 x+5=7

2x+3=10 12x-9x=9 6x+18=48

56x-50x=30 5x=15 78-5x=28

32y-29=3 5x+5=15 89x-9=80

100-20x=20 55x-25x=60 76y-75=1

23y-23=23 4x-20=0 80y+20=100

53x-90=16 2x+9x=11 12y-12=24

80+5x=100 7x-8=6 65x+35=100

19y+y=40 25-5x=15 79y+y=80

42x+28x=140 3x-1=8 90y-90=90

80y-90=70 78y+2y=160 88-x=80

9-4x=1 20x=40 65y-30=100

51y-y=100 85y+1=-86 45x-50=40
+6x=14
x+9x=4+7
2x+9=17
8-4x=6
6x-7=12
7x-9=8
x-56=1
8-7x=1
x-30=12
6x-21=21
6x-3=6
9x=18
4x-18=13
5x+9=11
6-2x=11
x+4+8=23
7x-12=8
X-5.7=2.15
15 5X-2X=18
3X 0.7=5
x\uff0b13\uff1d33
3 \uff0d 5x\uff1d80
1.8 +6x\uff1d54
6.7x \uff0d60.3\uff1d6.7
9 \uff0b4x \uff1d40
2x+8=16
3.5\u00d72= 4.2 x
26\u00d71.5= 2x
0.5\u00d716\u201516\u00d70.2=4x
9.25\uff0dX=0.403
16.9\u00f7X=0.3
X\u00f70.5=2.6
3\uff0d5x\uff1d80
1.8-6x\uff1d54
6.7x\uff0d60.3\uff1d6.7
9 \uff0b4x\uff1d40
0.2x\uff0d0.4\uff0b0.5\uff1d3.7
9.4x\uff0d0.4x\uff1d16.2
12\uff0d4x\uff1d20
1/3x\uff0b5/6x\uff1d1.4
12x\uff0b34x=1
18x\uff0d14x=12
23 x\uff0d5\u00d714=14
12\uff0b34x=56
22\uff0d14x=12
23x-14x=14
x\uff0b14x=65
23x=14x\uff0b14
30x12x\uff0d14x=1
x-0.7x=3.6

4. 8× 5/4 + 1/4 = 41/4
5. 6÷ 3/8 – 3/8 ÷6 = 255/16
6. 4/7 × 5/9 + 3/7 × 5/9 = 5/9
7. 5/2 -（ 3/2 + 4/5 ） = 1/5
8. 7/8 + （ 1/8 + 1/9 ） = 10/9
9. 9 × 5/6 + 5/6 = 25/3
10. 3/4 × 8/9 - 1/3 = 1/3
11. 7 × 5/49 + 3/14 = 13/14
12. 6 ×（ 1/2 + 2/3 ）= 7
13. 8 × 4/5 + 8 × 11/5 = 24
14. 31 × 5/6 – 5/6 = 25
15. 9/7 - （ 2/7 – 10/21 ）= 31/21
16. 5/9 × 18 – 14 × 2/7 = 6
17. 4/5 × 25/16 + 2/3 × 3/4 = 7/4
18. 14 × 8/7 – 5/6 × 12/15 = 46/3
19. 17/32 – 3/4 × 9/24 = 13/16
20. 3 × 2/9 + 1/3 = 1
21. 5/7 × 3/25 + 3/7 = 18/35
22. 3/14 × 2/3 + 1/6 = 13/42
23. 1/5 × 2/3 + 5/6 = 29/30
24. 9/22 + 1/11 ÷ 1/2 = 13/22
25. 5/3 × 11/5 + 4/3 = 5
26. 45 × 2/3 + 1/3 × 15 = 35
27. 7/19 + 12/19 × 5/6 = 17/19
28. 1/4 + 3/4 ÷ 2/3 =11/8
29. 8/7 × 21/16 + 1/2 = 2
30. 101 × 1/5 – 1/5 × 21 = 16
31.50＋160÷40 （58+360）÷（64-45） = 138
32.120-144÷18+35 = 147
33.347+45×2-4160÷52 = 357
34（58+37）÷（64-9×5） = 5
35.95÷（64-45） = 5
36.178-145÷5×6+42 = 46
37.812-700÷（9+31×11）= 810
38.85+14×（14+208÷26） = 393
39.（284+16）×（512-8208÷18）= 16800
40.120-36×4÷18+35 = 147
41.（58+37）÷（64-9×5） = 5
42.(6.8-6.8×0.55)÷8.5 = 0.36
43.0.12× 4.8÷0.12×4.8 = 23.04
44.（3.2×1.5+2.5）÷1.6 = 4.5625
45.6-1.6÷4 = 5.6
46.7.2÷0.8-1.2×5 = 3
47.6.5×（4.8-1.2×4）= 0
48.10.15-10.75×0.4-5.7 = 0.15
49.5.8×（3.87-0.13）+4.2×3.74 = 37.4
50.32.52-（6+9.728÷3.2）×2.5 = 9.92
51.-5+58+13+90+78-(-56)+50 = 340
52.-7*2-57/3 = -33
53.(-7)*2/(1/3)+79/(3+6/4) = 59.556
54.123+456+789+98/(-4) = 1343.5
55.369/3-(-54-31/15.5) = 179
56.39+{3x[42/2x(3x8)]} = 1551
57.9x8x7/5x(4+6) = 1008
58.11x22/(4+12/2) = 24.2
59.94+(-60)/10 = 100
12*45+15*28+30*26+60*11
=12*15*3+15*28+2*15*26+15*4*11
=15*(12*3+28+26*2+4*11)
=15*160
=3*5*160
=800*3
=2400
197*198—196*199
=197*198-196*(198+1)
=197*198-196*198-196
=198*(197-196)-196
=198-196
=2

999×999+1999
=1000*999-999+1999
=999000+(1999-999)
=999000+1000
=1000000

：（100+99*1）+（99+99*2）+（98+99*3）+……+（2+99*99）+（1+99*100）
=(100+99+98+.....+1)+99*1+99*2+99*3+....+99*100
=(100+1)*100/2+99*1+99*2+99*3+....+99*100
=5050+99*(1+2+3+...+100)
=5050+99*5050
=5050*(1+99)
=5050*100
=505000
9+99+999+……+8个9+9个9
=10+100+1000+...+1000000000-9
=1111111110-9
=1111111101
(1). (x+y-z)+(x-y+z)-(x-y-z)
=x+y-z+x-y+z-x+y+z
=x+y+z

(2). (a^2+2ab+b^2)-(a^2-2ab+b^2)
= a^2+2ab+b^2 - a^2+2ab-b^2
=4ab

(3).3(2x^2-y^2)-2(3y^2-2x^2)
=6x^2-3y^2-6y^2+4x^2
=10x^2-9y^2

64x+207=169
127x+61=117
78x+15=78
253x+161=165
18x+255=217
178x+115=178
97x+5=9
121x+105=74
45x+5=113
55x+146=4
12x+111=174
145x+105=213
208x+95=57
221x+107=65
83x+205=57
51x+195=157
118x+55=118
36x+200=204
57x+38=1
218x+155=218
188x+149=1
202x+40=161
178x+45=153
147x+34=252
210x+144=200
109x+250=208
226x+92=201
195x+82=44
5x+199=5
180x+88=92
204x+189=157
128x+88=197
191x+78=40
254x+188=244
153x+38=252
14x+136=245
239x+126=88
49x+242=49
20x+236=88
34x+128=248
10x+132=240
234x+122=84
41x+232=32
249x+186=249
167x+75=79
188x+169=132
93x+30=93
63x+24=132
126x+13=232
189x+123=180
140x+78=141
111x+71=180
174x+61=23
237x+171=227
188x+126=188
159x+119=228
222x+109=71
29x+219=19
236x+174=236
207x+167=20
14x+157=119
28x+169=127
145x+11=120
114x+1=219
180x+117=180
151x+111=219
214x+101=63
21x+211=11
228x+165=228
199x+159=11
5x+149=111
68x+3=59
20x+213=20
246x+207=59
53x+196=159
116x+50=107
68x+5=68
38x+255=107
101x+244=206
164x+98=154
115x+53=115
86x+46=155
149x+36=254
212x+146=202
163x+101=163
134x+94=203
197x+84=46
4x+194=250
211x+148=211
182x+142=251
245x+132=94
52x+242=42
3x+196=3
23x+32=238
176x+134=50
173x+180=194
189x+76=38
252x+186=242
203x+140=203
174x+134=242
236x+124=86
43x+233=34
251x+188=251
221x+182=34
28x+171=134
143x+130=35
133x+229=30
246x+184=247
217x+177=30
76x+16=82
181x+21=77
35x+225=25
239x+173=229
190x+128=190
213x+226=183
130x+111=73
31x+221=21
235x+169=225
186x+123=186
157x+117=226
16x+211=22
121x+217=17
231x+165=221
179x+113=169
130x+67=130
101x+61=169
216x+155=222
64x+161=217
174x+109=165
126x+63=126
96x+57=165
159x+46=9
19x+5=166
8x+104=161
118x+52=109
69x+7=70
40x+256=109
155x+95=161
4x+100=156
114x+48=104
65x+3=65
85x+94=45
238x+196=113
235x+242=1
251x+138=100
110x+96=1
100x+196=252
213x+150=213
184x+144=253
43x+238=49
148x+244=44
2x+192=248
2x+244=149
248x+88=144
154x+140=45
196x+20=181
23x+120=176
186x+172=77
228x+52=213
55x+151=208
169x+106=169
188x+198=148
85x+44=216
82x+90=104
150x+90=156
255x+95=151
109x+43=99
109x+96=256
99x+195=251
212x+150=212
235x+248=205
152x+133=95
105x+92=252
95x+191=247
205x+139=195
205x+191=96
195x+35=91
52x+245=52
72x+81=31
225x+183=100
222x+229=243
34x+229=40
139x+235=35
45x+31=192
34x+131=187
144x+79=135
145x+131=36
138x+237=44
63x+73=23
216x+175=91
10x+69=188
135x+116=79
88x+75=236
179x+53=55
146x+106=215
5x+201=11
110x+206=6
220x+154=210
220x+207=111
213x+57=119
139x+148=99
36x+250=167
85x+145=8
211x+192=154
164x+150=55
154x+250=50
60x+46=207
50x+146=202
212x+198=103
202x+42=98
108x+94=255
150x+230=135
30x+110=15
114x+210=10
20x+6=167
62x+142=47
145x+242=42
52x+38=199
41x+137=194
204x+190=95
193x+33=90
152x+190=200
47x+34=195
89x+170=74
18x+148=150
241x+201=54
149x+138=234
69x+29=138
184x+124=190
33x+129=185
195x+182=86
188x+32=94
114x+123=74
60x+67=82
79x+225=194
214x+223=174
111x+69=242
160x+220=83
79x+109=169
2x+75=86
4x+63=182
179x+209=13
102x+175=185
104x+163=26
22x+53=113
202x+19=29
204x+7=126
73x+54=17
27x+13=174
69x+149=54
201x+22=177
58x+181=33
30x+177=146
165x+174=125
111x+118=133
130x+21=245
61x+123=178
117x+30=45
39x+182=144
154x+141=45
196x+21=181
24x+120=176
186x+172=77
228x+52=213
108x+188=93
192x+32=88
98x+84=245
140x+220=125
20x+100=5
104x+200=256
10x+252=157
52x+132=37
188x+12=173
16x+112=168
178x+164=69
220x+44=205
96x+174=72
161x+234=244
163x+222=85
81x+111=172
53x+176=28
26x+172=141
160x+170=120
106x+114=128
174x+114=180
75x+156=60
159x+255=55
65x+52=212
107x+188=92
243x+68=228
123x+204=108
3x+84=244
188x+62=64
207x+220=177
176x+209=20
168x+245=143
25x+147=256
46x+241=52
203x+27=188
83x+163=68
167x+7=63
125x+164=173
21x+7=168
60x+137=35
124x+197=207
126x+185=48
44x+75=135
17x+139=247
38x+233=44
195x+19=180
75x+155=60
211x+35=196
91x+171=76
227x+51=212
103x+180=79
167x+241=251
170x+229=92
88x+118=178
60x+183=35
81x+21=87
238x+63=223
118x+199=103
254x+79=239
134x+215=119
14x+95=255
147x+224=122
4x+126=235
25x+221=31
182x+6=167
62x+142=47
198x+22=183
78x+158=63
214x+38=199
91x+168=66
204x+70=179
225x+164=231
126x+206=111
6x+86=247
142x+222=127
22x+102=7
158x+238=143
35x+112=10
148x+14=122
169x+108=175
70x+150=55
2x+135=144
244x+227=126
8x+130=238
29x+224=35

自己去做吧

鎴戦渶瑕50閬撳垵涓瑙ｆ柟绋 涓嶈搴旂敤棰樻槸瑙ｆ柟绋嬭绠楅
绛旓細3X+5X=48 14X-8X=12 6*5+2X=44 20X-50=50 28+6X=88 32-22X=10 24-3X=3 10X*锛5+1锛=60 99X=100-X X+3=18 X-6=12 56-2X=20 4y+2=6 x+32=76 3x+6=18 16+8x=40 2x-8=8 4x-3*9=29 8x-3x=105 x-6*5=42 x+5=7 2x+3=10 12x-9x=9 6x+18=48 56x-5...

姹鍒濅竴璁＄畻棰(瑙ｆ柟绋+鍖栫畝姹傚+鏈夌悊鏁版贩鍚堣繍绠)60閬(鍚30棰)
绛旓細瑙ｆ柟绋 1)87x+2y=7733 20x+32y=4364 绛旀锛歺=87 y=82 2)44x+60y=6340 15x+42y=4122 绛旀锛歺=20 y=91 3)11x+74y=3548 71x+45y=4730 绛旀锛歺=40 y=42 4)53x+54y=3229 70x+43y=2877 绛旀锛歺=11 y=49 5)43x+9y=801 76x+16y=1420 绛旀锛歺=9 y=46 6)55x+32y=6161...

姹50閬撳垵涓瑙ｆ柟绋嬭绠楅,鏈濂芥槸鍘诲垎姣,鍘绘嫭鍙风殑
绛旓細50.32.52-锛6+9.728梅3.2锛壝2.3X+5X=48 14X-8X=12 6*5+2X=44 20X-50=50 28+6X=88 32-22X=10 24-3X=3 10X*锛5+1锛=60 99X=100-X X+3=18 X-6=12 56-2X=20 4y+2=6 x+32=76 3x+6=18 16+8x=40 2x-8=8 4x-3*9=29 8x-3x=105 x-6*5=42 x+5=7 2x+...

姹50閬撳垵涓涓婄殑涓鍏冧竴娆鏂圭▼璁＄畻棰?
绛旓細49.5X=55.5 50.Y=50-85 zhidao.baidu/q?word=%C7%F350%B5%C0%D2%BB%D4%AA%D2%BB%B4%CE%B7%BD%B3%CC%BC%C6%CB%E3%CC%E2&lm=0&fr=search&ct=17&pn=0&tn=ikaslist&rn=10,4,***/Soft/ShowSoft.asp?SoftID=59569 杩欓噷鍘荤湅鐪.涓嶇煡鏄惁绗﹀悎浣犵殑瑕佹眰,2,2x+17=35 3x-64=11 ...

50閬撳垵涓缁忓吀瑙ｆ柟绋嬫垨璁＄畻棰
绛旓細6. 4/7 脳 5/9 + 3/7 脳 5/9 = 5/9 7. 5/2 -锛 3/2 + 4/5 锛 = 1/5 8. 7/8 + 锛 1/8 + 1/9 锛 = 10/9 9. 9 脳 5/6 + 5/6 = 25/3 10. 3/4 脳 8/9 - 1/3 = 1/3 11. 7 脳 5/49 + 3/14 = 13/14 12. 6 脳锛 1/2 + 2/3 锛= ...

鍒濅竴鐨瑙ｆ柟绋鐨璁＄畻棰璋佹湁?瓒婂瓒婂ソ!!
绛旓細绛旀锛歺=41 y=50 (21) 48x-54y=-3186 24x+y=1080 绛旀锛歺=45 y=99 (22) 36x+77y=7619 47x-y=799 绛旀锛歺=17 y=91 (23) 13x-42y=-2717 31x-y=1333 绛旀锛歺=43 y=78 (24) 28x+28y=3332 52x-y=4628 绛旀锛歺=89 y=30 (25) 62x-98y=-2564 46x-y=2024 绛旀锛歺...

鍒濅竴涓婂鏈熸暟瀛璁＄畻棰100閬撹绛旀鍜岃繃绋,杩樻湁鏂圭▼50閬
绛旓細鍥涖16.璁捐儨浜唜鍦,鍙垪鏂圭▼:2x+(8-x)=13,瑙ｄ箣寰梮=5 17.灏忚档鏄9鍙峰嚭鍘荤殑,灏忕帇鏄7鏈15鍙峰洖瀹剁殑(鎻愮ず:鍙涓冨ぉ鐨勪腑闂翠竴澶╂棩鏈熸暟鏄痻,鍒欏叾浣欏叚澶╁垎鍒负x-3,x-2,x-1,x+1,x+2,x+3,鐢遍鎰忓垪鏂圭▼,鏄撴眰寰椾腑闂村ぉ鏁,瀵瑰皬鐜嬬殑鎯呭舰,鐢变簬涓冨ぉ鐨勬棩鏈熸暟涔嬪拰鏄7鐨勫嶆暟,鍥犱负84鏄7鐨勫嶆暟,鎵浠ユ湀浠芥暟涔熸槸7...

鍒濅竴涓婂鏈熸暟瀛璁＄畻棰銆瑙ｆ柟绋100閬
绛旓細绛旀锛歺=50 y=57 (15) 83x-49y=82 59x+y=2183 绛旀锛歺=37 y=61 (16) 91x+70y=5845 95x-y=4275 绛旀锛歺=45 y=25 (17) 29x+44y=5281 88x-y=3608 绛旀锛歺=41 y=93 (18) 25x-95y=-4355 40x-y=2000 绛旀锛歺=50 y=59 (19) 54x+68y=3284 78x+y=1404 绛旀锛歺=...

鍒濅竴涓婂唽鏁板瑙ｆ柟绋40棰(甯︾瓟妗)
绛旓細25. 60x-30=20 26. 20x+50=110 27. 2x=5x-3 28. 90=10+x 29. 90+20x=30 30. 691+3x=700 31 2x-10.3x=15 32 0.52x-(1-0.52)x=80 33 x/2+3x/2=7 34 3x+7=32-2x 35 3x+5(138-x)=540 36 3x-7(x-1)=3-2(x+...

姹鍒濅竴骞寸骇鐨瑙ｆ柟绋嬭绠楅50閬
绛旓細3x+1)/2-2=(3x-2)/10-(2x+3)/5 3x+(x-1)/2=3-(2x-1)/3 4x/40+[8(x+2)]/40=1 (5x-1)/4=(3x+1)/2-(2-x)/3 32X+88=3480 204-X+76=196 X-锛135-98锛=25 4X-15=17 8脳125-40X=600 0.4X梅5锛0.6 2X锛0.82锛0.82 3锛0.5X锛7 X+80脳2=200 45-...

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