3 |
5 |
4 |
5 |
3 |
2 |
2 |
9 |
2 |
3 |
1 |
2 |
1 |
4 |
3x-1 |
5 |
x+2 |
2 |
27 |
8 |
2 |
9 |
2 |
3 |
3 |
4 |
2 |
11 |
x-3 |
2 |
1 |
3 |
y |
3 |
y-1 |
2 |
A.2y=18-3(y+1) | B.2y=3-3(y-1) | C.y=3-(y-1) | D.2y=18-3(y-1) |
x+3 |
2 |
4x-1 |
5 |
A.将方程3x-2=2x-1移项,得3x-2x=-1-2 | ||||
B.将方程3-x=2-5(x-1)去括号,得3-x=2-5x-1 | ||||
C.将方程
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D.将方程
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