x+1 |
2 |
x-1 |
3 |
A.3x+1-2x-1=1 | B.3x+1-2x-1=6 |
C.3(x+1)-2(x-1)=1 | D.3(x+1)-2(x-1)=6 |
3y-1 |
2 |
5y+1 |
3 |
7y+1 |
6 |
A.a、b异号 | B.b大于0 | C.a、b同号 | D.a小于0 |
a+4 |
6 |
a+3 |
3 |
a-2 |
2 |
1 |
2 |
2 |
3 |
1 |
2 |
x+1 |
0.03 |
x-3 |
0.05 |
100(x+1) |
3 |
100(x-3) |
5 |
1 |
3 |
A.2 | B.-2 | C.3 | D.-3 |
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