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(3/4)*(-4*x-8) = 3 // - 3
(3/4)*(-4*x-8)-3 = 0
3/4*(-4*x-8)-3 = 0
3/4*(-4*x-8)-3 = 0
-3*x-9 = 0
-3*x-9 = 0
-3*x-9 = 0 // + 9
-3*x = 9 // : -3
x = 9/(-3)
x = -3
x = -3
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