A.由5=x-2得x=-5-2 | B.由5y=0得y=
| ||
C.由3x=-2得x=-
| D.由2x=3x+5得-5=3x-2x |
2 |
3 |
3 |
4 |
1 |
12 |
1 |
3 |
A.a=b | B.ma-6=mb-6 | ||||
C.-
| D.ma+8=mb+8 |
A.a-5=b-5 | B.-
| C.(5-c)a=(5-c)b | D.
|
A.若x-1=3,则x=4 | B.若3x-1=x+3,则2x-1=3 |
C.若2=x,则x=2 | D.若5x-4x=8,则5x+8=4x |
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