1 |
2 |
A.1 | B.5 | C.3 | D.4 |
1 |
2 |
2S |
h |
2×24 |
6 |
A.x-5=y-5 | B.-3x=-3y | C.mx=my | D.
|
A.ax=ay | B.ax+b=ay+b | C.ax-x=ay-x | D.
|
A.由
| B.由3x=-2 得x=-
| ||||
C.由2x-3=3x 得x=3 | D.由2x+3=x-1 得x=-4 |
A.若3x-1=2x+1,则3x+2x=-1+1 | ||||
B.若1-
| ||||
C.若3(x+1)-5(1-x)=2,则3x+3-5-5x=2 | ||||
D.若1-
|
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