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 |
2 |
3 |
A.若3x-1=2x+1,则3x+2x=-1+1 | ||||
B.若1-
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C.若3(x+1)-5(1-x)=2,则3x+3-5-5x=2 | ||||
D.若1-
|
|
A.x+5=y+3 | B.-3x=-2y | C.ax=ay | D.
|
A.若7y-6=5-2y,则7y-2y=5+6 | ||
B.若4a-3=5,则a=5 | ||
C.-3a>5,则a>-
| ||
D.若-3x>6,则x<-2 |
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