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-6x+(-6)=24
-6x-6=24
-6x=24+6
-6x=30 /:-(6)
x=-5
b)-7 ( x - 2 ) = 3x -1
-7x+14=3x-1
-7x-3x=-1-14
-10x=-15 /:(-10)
x=1,5
c)4 (x - 1)= 6 ( 1 + x)
4x-4=6+6x
4x-6x=6+4
-2x=10 /:(-2)
x=-5
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