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-2x -2 = 0
-2x = 2
x= -1
b) 7x - 28 + 2x = 8
9x = 36
x = 4
3x-5x=0-3+5
-2x=2/:(-2)
x= -1
b) 7x - 28 + 2x = 8
7x+2x=8+28
9x=36/:9
x=4
3x+5x=5-3
8x=2/8
x=2= 1
8 4
b) 7x-28+2x=8
7x+2x=8+28
9x=36/9
x= 4