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(-3/4)*(12*x-8)-18 = 0
-3/4*(12*x-8)-18 = 0
-3/4*(12*x-8)-18 = 0
-9*x-12 = 0
-9*x-12 = 0
-9*x-12 = 0 // + 12
-9*x = 12 // : -9
x = 12/(-9)
x = -4/3
x = -4/3
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