A.方程3x-2=2x+1,移项,得3x-2x=-1+2 | ||||
B.方程3-x=2-5(x-1),去括号,得3-x=2-5x-1 | ||||
C.方程
| ||||
D.方程
|
2 |
3 |
3 |
2 |
3 |
2 |
3 |
2 |
3 |
2 |
9 |
4 |
x-1 |
0.2 |
x |
0.5 |
1 |
2 |
2x-5 |
6 |
3-x |
4 |
2x-4 |
3 |
x-7 |
6 |
A.1-2(2x-4)=-(x-7) | B.6-2(2x-4)=-x-7 |
C.6-2(2x-4)=-(x-7) | D.以上答案均不对 |
x-3 |
2 |
1+2x |
6 |
A.3x-3=1+2x | B.3x-9=1+2x | C.3x-3=2+2x | D.3x-12=2+4x |
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