решите уравнения
а)3х-2=-17 б)3х+2х=13+8х-10
в)3х-3=13-2х г)13+8х-(10х+9)=12
а)3х-2=-17 б)3х+2х=13+8х-10
в)3х-3=13-2х г)13+8х-(10х+9)=12
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A) 3x=-17+23x=-15
x=-15/3
x=-5
б)5x-8x=13-10
-3x=3
x=-1
в) 3x-3=13-2x
3x+2x=13+3
5x=16
x=3,2
г) 13+8x-10x-9=12
-2x=12-13+9
-2x=8
x=-4