初一一元一次方程计算题20道要过程 初一 一元一次方程计算题，20道并检验。
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8x+5+30x=x(5+3)
7x+6x+3x=65x+69
65x*145-1=25x
5x+5x-7x=62x+100
5x+6-12=36
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（2） (5y+1)+ (1-y)= (9y+1)+ (1-3y);
3 0.4(x-0.2)+1.5=0.7x-0.38 x=6
4 30x-10(10-x)=100 x=5
5 4(x+2)=5(x-2) x=18
6 120-4(x+5)=25 x=18.75
7 15x+863-65x=54 x=16.18
8 3(x-2)+1=x-(2x-1) x=3/2
9 11x+64-2x=100-9x x=2
10 (5y+1)+ (1-y)= (9y+1)+ (1-3y);
11 20%+(1-20%)(320-x)=320×40%
12 2(x-2)-3(4x-1)=9(1-x)
13 15-(8-5x)=7x+(4-3x)
14 32-x=2
15 2 0.52x-(1-0.52)x=80
16 3x+7=32-2x
17 3x-7(x-1)=3-2(x+3)
18 3(20-y)=6y-4(y-11)
19 2x－5x＋1＝0 X= 1/3
20 （2x－3）－2（2x－3）－3＝0 X=0
看在我辛苦的份上 给分呀
(1)(-8)+10+2+(-1)
=-8+10+2-1
=3
(2)25+(-12)+(-17)-(-6)
=25-12-17+6
=2
(3)(-0.8)+1.2+(-0.7)+(-2.1)
=-0.8+1.2-0.7-2.1
=-1.7
(4)5.6+(-0.9)+4.4=(-8.1)
=10+(-9)
=1
(5)5+(-6)+3+9+(-4)+(-7)
=17+(-17)
=0
(6)0+(-3.17)+(-5)+(+1.17)
=[-(3.17+50]+1.17
=-(8.17-1.17)
=-7
(8)0-(-2.17)-(+1.17)-0.17
=2.17-1.17-0.17
=0.83
1.
3x+2(6-x)=26
x+12 =26
x+12-12=26-12
x=13
题目：4x+10=15-x
过程：4x+x=15-1o
5x=5
x=5÷5
答案：x=1
1、2（x+2）+4=9
2x+4+4=9
2x=9-8
x=0.52
2、2(x+4)=10
2x+8=10
x=1
3、3(x-5)=18
3x-15=18
3x=33
x=11
4,4x+8=2(x-1)
4x+8=2x-2
2x=-10
x=-5
5、3(x+3)=9+x
3x+9=9+x
x=0
6、6(x/2+1)=12
3x+6=12
3x=6
x=2
7、9(x+6)=63
9x+54=63
x=1
8、2+x=2(x-1/2)
2+x=2x-1
x=3
9、8x+3(1-x)=-2
5x=-5
x=-1
10、7+x-2(x-1)=1
7+x-2x+2=1
x=8
X+1/3-1=4-X/2
解： X+X/2=4-1/3+1
X=16/9
(5y+1)+(1-y)=(9y+1)+(1-3y) 解： 5y+1+1-y=9y+1+1-3y 5y-y-9y+3y=1+1-1-1 -2y=0 y=0 这是解题的过程。
7(2x-1)-3(4x-1)=4(3x+2)-1 解 14x-7-12x+3=12x+8-1 14x-12x-12x=8-1+7-3 -10x=11 x=-1.1
3(1+x)/2=6
3+3x/2=6
3+3x=12
3x=9
x=3
[(2x-14)/28]+x/35-[(2x-14)/25]-x/28=1/5
x=42
0.4(x-0.2)+1.5=0.7x-0.38
x=6
30x-10(10-x)=100
x=5
4(x+2)=5(x-2)
x=18
120-4(x+5)=25
x=18.75
15x+863-65x=54
x=16.18
3(x-2)+1=x-(2x-1)
x=3/2
11x+64-2x=100-9x
x=2
(1) 1-1/2x=3-1/6x
-1/2x+1/6x=3-1
-3/6+1/6x=2
-2/6x=2
x=2*(-6/2)
x=-6
(2)(4-x)/3=1+(x-3)/2
(4-x)/3-(x-3)/2=1
2(4-x)/6-3(x-3)/6=1
(8-2x)/6-(3x-9)/6=1
8-2x-3x+9/6=1
-5x+17/6=1
-5x+17=6
-5x=6-17
-5x=-11
x=11/5
(3) 1/2(x-1)=2-1/4(x+2)
1/2x-2=2-1/4x+8
(2-1)(2x-2)=4x+8
4x-2x-4+2=8+4-2
-2x=10
x=-5
1×（x+8)=(1+x)×5
x+8=5+5x
4x=8-5
x=3/4
3（x-1）=5x+1
3x-3=5x+1
-2x=-4
x=-2
5（x-2）=4-（2-x）
5x-10=4-2+x
4x=12
x=3
等我初一的时候我在给你。。。。。。。。。。。。。。。
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