1 |
a |
A.0 | B.1 | C.2 | D.3 |
1 |
a |
2x-4 |
3 |
x-4 |
6 |
A.2-2(2x-4)=-(x-4) | B.12-2(2x-4)=-x-4 |
C.12-2(2x-4)=-(x-4) | D.12-4x-8=-x+4 |
1 |
2 |
x |
3 |
2 |
3 |
x |
2 |
A.3(6-2x)-4(18+3x)=1 | B.3(6-2x)-4(18+3x)=6 | ||||||||
C.3(1-
| D.3(1-
|
1 |
2 |
1 |
2 |
5 |
3 |
A.1 | B.2 | C.3 | D.4 |
A.方程7x=-3的解是x=-
| ||||
B.方程3-2x=8-x移项得2x+x=8-3 | ||||
C.方程
| ||||
D.方程5-x=8的解是x=-3 |
b |
a |
x |
3 |
x |
2 |
1 |
6 |
A.1 | B.-1 | C.±1 | D.a≠1 |
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