初一一元一次方程经典解方程 初一一元一次方程 详细 解方程 写出解设

\u6c42\u521d\u4e00\u89e3\u4e00\u5143\u4e00\u6b21\u65b9\u7a0b20\u9053\u6700\u597d\u914d\u7b54\u6848

2(x+1)>5x \u7b54\u6848\uff1ax82x-8-1/22(x+9)>3(1-x)\u7b54\u6848\uff1ax>-31-7(y+2)16/9x-1/2(x+1)>10\u7b54\u6848\uff1ax>211-x/444/5(x-2)/5-(x+3)>(2x-5)/3-3\u7b54\u6848\uff1ax<72x+2y=44x+3y=26\u7b54\u6848\uff1ax=20,y=21/3y+x=441/4x+y=44\u7b54\u6848\uff1ax=32,y=36400-x=4(150-y)x:y=2:1\u7b54\u6848\uff1ax=200,y=100x+y=9540%x+78%y=60&\u00b795\u7b54\u6848\uff1ax=45,y=503x+20=y4x-30=y\u7b54\u6848\uff1ax=50,y=1706x+5y=-12x-3y=-5\u7b54\u6848\uff1ax=-1,y=13x-2y=53x+2y=13\u7b54\u6848\uff1ax=3,y=24x-5y=52x+3y=-25\u7b54\u6848\uff1ax=-5,y=-52x+3y=-73x+2y=7\u7b54\u6848\uff1ax=7,y=-73x+5y=-25x-3y=8\u7b54\u6848\uff1ax=1,y=-1(x-9)/4=(x+5)/3\u7b54\u6848\uff1ax=-479x/16=3x/4+3\u7b54\u6848\uff1ax=-16(1+x)/3-2x=8-(x+8)/4\u7b54\u6848\uff1ax=-4x+(x-1)/2=(2x-1)/3-1\u7b54\u6848\uff1ax=-14%x+8%=6%x-0.4\u7b54\u6848\uff1ax=243(1-x)+2x=5\u7b54\u6848\uff1ax=-27(x-2)=2x-34\u7b54\u6848\uff1ax=-41/2m+3=1\u7b54\u6848\uff1am=-42-1/3(k-1)=2\u7b54\u6848\uff1ak=1x+x+x+1=x+2+x+3\u7b54\u6848\uff1ax=4

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4X=Y
\u6839\u636e\u7b2c\u4e8c\u4e2a\u6761\u4ef6\uff0c\u6709
X+4*\uff087/3\uff09=Y
\u8fd9\u4e24\u4e2a\u65b9\u7a0b\u4f60\u603b\u4f1a\u89e3\u5427
\u7b2c\u4e09\u9898\u8bbe\u539f\u6765X\u5929\u5b8c\u6210\u603b\u5171\u6709Y\u4ef6\uff0c\u6709
8X=Y
\u7531\u9898\u610f\u540e\u6765\u7684\u5de5\u6548\u662f12\u4ef6\u6bcf\u5929\uff0c\u5219\u6709
0.25Y+12\uff08X-3\uff09-3=y
\u81ea\u5df1\u89e3
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X+65=5/4(X+54)-65
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7(2x-1)-3(4x-1)=4(3x+2)-1
(5y+1)+ (1-y)= (9y+1)+ (1-3y)
[ (- 2)-4 ]=x+2
20%+(1-20%)(320-x)=320×40%
2(x-2)+2=x+1
6.2(x-2)-3(4x-1)=9(1-x)
7.11x+64-2x=100-9x
15-(8-5x)=7x+(4-3x)
3(x-7)-2[9-4(2-x)]=22
3/2[2/3(1/4x-1)-2]-x=2
5x+1-2x=3x-2
3y-4=2y+1
87X*13=5
7Z/93=41
15X+863-65X=54
58Y*55=27489
2（x+2）+4=9
2(x+4)=10
3(x-5)=18
4x+8=2(x-1)
3(x+3)=9+x
6(x/2+1)=12
9(x+6)=63
2+x=2(x-1/2)
8x+3(1-x)=-2
7+x-2(x-1)=1
x/3 -5 = (5-x)/2
2(x+1) /3=5(x+1) /6 -1
(1/5)x +1 =(2x+1)/4
(5-2)/2 - (4+x)/3 =1
15x-8(5x+1.5)=18*1.25+x
3X+189=521
4Y+119=22
3X*189=5
8Z/6=458
3X+77=59
4Y-6985=81
87X*13=5
7Z/93=41
15X+863-65X=54
58Y*55=27489
2(x-2)-3(4x-1)=9(1-x)
11x+64-2x=100-9x
15-(8-5x)=7x+(4-3x)
3(x-7)-2[9-4(2-x)]=22
3/2[2/3(1/4x-1)-2]-x=2
2(x-2)+2=x+1
0.4(x-0.2)+1.5=0.7x-0.38
30x-10(10-x)=100
4(x+2)=5(x-2)
120-4(x+5)=25
15x+863-65x=54
3(x-2)+1=x-(2x-1)
11x+64-2x=100-9x
14.59+x-25.31=0
x-48.32+78.51=80
820-16x=45.5×8
(x-6)×7=2x
3x+x=18
0.8+3.2=7.2
12.5-3x=6.5
1.2(x-0.64)=0.54
x+12.5=3.5x
8x-22.8=1.2
1\ 50x+10=60
2\ 60x-30=20
3\ 3^20x+50=110
4\ 2x=5x-3
5\ 90=10+x
6\ 90+20x=30
7\ 691+3x=700
2x-10.3x=15
0.52x-(1-0.52)x=80
x/2+3x/2=7
3x+7=32-2x
3x+5(138-x)=540
3x-7(x-1)=3-2(x+3)
18x+3x-3=18-2(2x-1)
3(20-y)=6y-4(y-11)
-(x/4-1)=5
3[4(5y-1)-8]=6
-3x-6x2=7
5x+1-2x=3x-2
3y-4=2y+1
3y-4=y+3
3y-y=3+4
0.4x-3=0.1x+2
5x+15-2x-2=10
2x-4+5-5x=-1
3X+189=521
4Y+119=22
3X*189=5
8Z/6=458
3X+77=59
4Y-6985=81

一元一次方程都很简单，会做书上、练习册上的就行，没必要再找题做。

-10=5x+50 1/3x-1/10x=1/12+30

3X+77=59
4Y-6985=81
7(2x-1)-3(4x-1)=4(3x+2)-1
(5y+1)+ (1-y)= (9y+1)+ (1-3y)
[ (- 2)-4 ]=x+2
20%+(1-20%)(320-x)=320×40%
2(x-2)+2=x+1
6.2(x-2)-3(4x-1)=9(1-x)
7.11x+64-2x=100-9x
15-(8-5x)=7x+(4-3x)
3(x-7)-2[9-4(2-x)]=22
3/2[2/3(1/4x-1)-2]-x=2
5x+1-2x=3x-2
3y-4=2y+1
87X*13=5
7Z/93=41
15X+863-65X=54
58Y*55=27489
2（x+2）+4=9
2(x+4)=10
3(x-5)=18
4x+8=2(x-1)
3(x+3)=9+x
6(x/2+1)=12
9(x+6)=63
2+x=2(x-1/2)
8x+3(1-x)=-2
7+x-2(x-1)=1
x/3 -5 = (5-x)/2
2(x+1) /3=5(x+1) /6 -1
(1/5)x +1 =(2x+1)/4
(5-2)/2 - (4+x)/3 =1
15x-8(5x+1.5)=18*1.25+x
3X+189=521
4Y+119=22
3X*189=5
8Z/6=458
3X+77=59
4Y-6985=81
87X*13=5
7Z/93=41
15X+863-65X=54
58Y*55=27489
2(x-2)-3(4x-1)=9(1-x)
11x+64-2x=100-9x
15-(8-5x)=7x+(4-3x)
3(x-7)-2[9-4(2-x)]=22
3/2[2/3(1/4x-1)-2]-x=2
2(x-2)+2=x+1
0.4(x-0.2)+1.5=0.7x-0.38
30x-10(10-x)=100
4(x+2)=5(x-2)
120-4(x+5)=25
15x+863-65x=54
3(x-2)+1=x-(2x-1)
11x+64-2x=100-9x
14.59+x-25.31=0
x-48.32+78.51=80
820-16x=45.5×8
(x-6)×7=2x
3x+x=18
0.8+3.2=7.2
12.5-3x=6.5
1.2(x-0.64)=0.54
x+12.5=3.5x
8x-22.8=1.2
1\ 50x+10=60
2\ 60x-30=20
3\ 3^20x+50=110
4\ 2x=5x-3
5\ 90=10+x
6\ 90+20x=30
7\ 691+3x=700
2x-10.3x=15
0.52x-(1-0.52)x=80
x/2+3x/2=7
3x+7=32-2x
3x+5(138-x)=540
3x-7(x-1)=3-2(x+3)
18x+3x-3=18-2(2x-1)
3(20-y)=6y-4(y-11)
-(x/4-1)=5
3[4(5y-1)-8]=6
-3x-6x2=7
5x+1-2x=3x-2
3y-4=2y+1
3y-4=y+3
3y-y=3+4
0.4x-3=0.1x+2
5x+15-2x-2=10
2x-4+5-5x=-1
3X+189=521
4Y+119=22

什么鬼题目？

鍒濅竴涓鍏冧竴娆¤В鏂圭▼
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鍒濅竴鏁板銆佸垪涓鍏冧竴娆℃柟绋嬭В鏂圭▼,
绛旓細璁鹃害鐢板崟浣嶄负1,鍒欑敳鐨勬晥鐜囦负1/12,涔欑殑鏁堢巼涓1/20 涔欏崟鐙敹鍓蹭簡4h,鍒欏壊浜嗛害鐢扮殑1/20*4=1/5 鍓╀笅鐨勪负1-(1/5)=4/5 鍏卞悓鏀跺壊鐨勬椂闂翠负(4/5)/(1/12+1/20)=(4/5)/(20/240+12/240)=(4/5)/(32/240)=6

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鎬ユ眰瑙~~鍒濅竴涓鍏冧竴娆℃柟绋闂(瑙ｆ柟绋閲嶇偣瑕佽繃绋嬫嫓鎵樹簡,璋㈣阿...
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