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x = 2
b) 6x+12 -4x+4 = 8
2x +16 = 8
2x = -8
x = -4
x/2 - x/4= 2
4(x/2 - x/4)= 4(2)
2x - x= 8
x= 8
b)
3(2x + 4) - 4(x - 1)= 8
6x + 12 - 4x + 4= 8
6x - 4x + 12 + 4= 8
2x + 16= 8
2x= 8 - 16
2x= -8
x= -8/2
x= -4