A.由x+5=6x-7得x-6x=7-5 | ||||
B.由-2(x-1)=3得-2x-2=3 | ||||
C.由
| ||||
D.由
|
x-3 |
0.7 |
10x-30 |
7 |
2x-4 |
3 |
x-7 |
6 |
A.2-2(2x-4)=-(x-7) | B.12-2(2x-4)=-x-7 |
C.12-4x-8=-(x-7) | D.12-2(2x-4)=x-7 |
y |
2 |
y-1 |
4 |
A.2y-y+1=4 | B.2y-y-1=4 | C.2y-y-1=1 | D.2y-(y-1)=1 |
A.-3 | B.3 | C.5 | D.-5 |
0.5x-0.2 |
0.2 |
1.5-5x |
0.5 |
A.9+
| B.0.9+
| ||||||||
C.9+
| D.0.9+
|
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