七年级50道解方程及答案？ 50道解方程题及答案初一🙏🙏...

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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

(1)\u30012(7x-5)=3
14x=13
X=13/14
(2)\u30014(2x-1)=3(5x+1)
-7x=7
X=-1
(3)\u30013x-42=9x-2
-6x=40
X=-20/3
(4)\u30012x-5(3-2x)=10
2x-15+10x=10
12x=25
X=25/12
(5)\u30012(2x+1)-(5x-1)=6
4x+2-5x+1=6
-x=3
X=-3
(6)\u30012x+14=28-14x
16x=14
X=8/7
(7)\u300160+ 3/10 x-60+ 2/10 x=108
1/2 x=108
X=216
8\u30014x+3/4- 2-3x/8=x
\u53bb\u5206\u6bcd\uff1a2\uff084x+3\uff09-(2-3x)=8x
\u79fb\u9879\uff1a8x-8x+3x=-6+2
\u5408\u5e76\uff1a3x=-4
\u5316\u7cfb\u6570\u4e3a1\uff1ax=-4/3
9\u30013x+ 2x-1/3=3- x+1/2
\u53bb\u5206\u6bcd\uff1a18x+2(2x-1)=18-3(x+1)
\u79fb\u9879\uff1a18x+4x+3x=2+18-3
\u5408\u5e76\uff1a25x=17
\u5316\u7cfb\u6570\u4e3a1\uff1ax=17/25
10\u3001 10x+1/6-2x-1/3=1-2X+1/4
\u53bb\u5206\u6bcd\uff1a\u5de6\u53f3\u540c\u65f6\u4e5812,\u5f97\uff1a2\uff0810x+1)-4(2x-1)=12-3(2x+1)
\u79fb\u9879\uff1a20x-8x+6x=-2-4-3+12
\u5408\u5e76\uff1a18x=3
\u5316\u7cfb\u6570\u4e3a1\uff1ax=1/6
11\u3001 2x-1/3-1=-5x+2/2
\u53bb\u5206\u6bcd\uff1a2\uff082x-1)-6=-3(5x+2)
\u79fb\u9879\uff1a4x+15x=2+6-6
\u5408\u5e76\uff1a19x=2
\u5316\u7cfb\u6570\u4e3a1\uff1ax=2/19
12\u3001 1-10x+1/6=2x+1/3
\u53bb\u5206\u6bcd\uff1a1-\uff0810x+1)=2\uff082x+1)
\u79fb\u9879\uff1a-10x-4x=-1+1+2
\u5408\u5e76\uff1a-14x=2
\u5316\u7cfb\u6570\u4e3a1:x=-1/7
13\u30017x-5/4=3/8
\u53bb\u5206\u6bcd\uff1a\u5de6\u53f3\u540c\u65f6\u4e588,\u5f97\uff1a2(7x-5)=3
\u79fb\u9879\uff1a14x=3+10
\u5408\u5e76\uff1a14x=13
\u5316\u7cfb\u6570\u4e3a1\uff1ax=13/14
14\u3001 x/2- 5x+2/6=1- 2x-4/3
\u53bb\u5206\u6bcd\uff1a3x-\uff085x+2)=6-2(2x-4)
\u79fb\u9879\uff1a3x-5x+4x=2+6+8
\u5408\u5e76\uff1a2x=16
\u5316\u7cfb\u6570\u4e3a1\uff1ax=8
15\u3001 3-x/2=x-4/3-1
\u53bb\u5206\u6bcd\uff1a3\uff083-x)=2(x-4)-6
\u79fb\u9879\uff1a-3x-2x=-9-8-6
\u5408\u5e76\uff1a-5x=-23
\u5316\u7cfb\u6570\u4e3a1\uff1ax=23/5
16\u30015x-1/4=3x+1/2-2-x/3
\u53bb\u5206\u6bcd\uff1a\u5de6\u53f3\u540c\u65f6\u4e5812,\u5f97\uff1a3\uff085x-1)=6(3x+1)-4(2-x)
\u79fb\u9879\uff1a15x-18x-4x=3+6-8
\u5408\u5e76\uff1a-7x=1
\u5316\u7cfb\u6570\u4e3a1\uff1ax=-1/7
17\u3001 x- 3-2x/2=1-x+2/6
\u53bb\u5206\u6bcd\uff1a6x-3(3-2x)=6-(x+2)
\u79fb\u9879\uff1a6x+6x+x=9+6-2
\u5408\u5e76\uff1a13x=13
\u5316\u7cfb\u6570\u4e3a1\uff1ax=1

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=45.5×8
17. (x-6)×7=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—（1—y）=—2
2-1+y=--2
y=-2-2+1=-3
（2）5—（x—1）=3—3x
5-x+1=3-3x
2x=3-1-5
2x=-3
x=-1.5
（3）3—2（2x+1）=2（x—3）
3-4x-2=2x-6
6x=3-2+6
6x=7
x=7/6
（4）4x—3（20—x）=6x—7（9—x）
4x-60+3x=6x-63+7x
7x-60=13x-63
6x=3
x=0.5
（5）12（2—3x）=4x+4
24-36x=4x+4
40x=20
x=0.5
（6）2（200—15x）=70+25x
400-30x=70+25x
55x=330
x=6
（7）4x—3（20—x）+4=0
4x-60+3x+4=0
7x=60-4=56
x=8
（8）1—3（8—x）=—2（15—2x）
1-24+3x=-30+4x
x=1-24+30
x=7
（9）2-(1-y)=-2
2-1+y=-2
1+y=-2
y=-3
（10）5-（x-1)=3-3x
5-x+1=3-3x
6-x=3-3x
-x+3x=3-6
x=-1.5

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绛旓細婊℃剰鍥炵瓟 2010-02-23 00:067(2x-1)-3(4x-1)=4(3x+2)-1;(5y+1)+ (1-y)= (9y+1)+ (1-3y);20%+(1-20%)(320-x)=320脳40 2(x-2)+2=x+1 2(x-2)-3(4x-1)=9(1-x)x/3 -5 = (5-x)/2 2(x+1) /3=5(x+1) /6 -1 (1/5)x +1 =(2x+1)/4 (5-...

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