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6x+12-4x=2-2x-2
2x+2x=-12
4x=-12 |:4
x=-3
8(3x-4)+2=5-7(x+5)
24x-32+2=5-7x-35
24x-30=-30-7x
24x+7x=-30+30
31x=0 |:31
x=0
x+1=-4(1-x)+x+2
x+1=-4+4x+x+2
x+1=-2+5x
x-5x=-2-1
-4x=-3 |:(-4)
x=¾
6x+12-4x=2-2x-2
6x-4x+2x=2-2-12
4x=-12/:4
x=-3
8(3x-4)+2=5-7(x+5)
24x-32+2=5-7x-35
24x+7x=5-35+32-2
31x=0/:31
x=0
x+1=-4(1-x)+x+2
x+1=-4+4x+x+2
1+4-2=4x+x-x
3=4x/:4
x=0,75 lub 3/4