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(3/4)*(8*x-12) = 7-(2*x) // - 7-(2*x)
(3/4)*(8*x-12)+2*x-7 = 0
3/4*(8*x-12)+2*x-7 = 0
3/4*(8*x-12)+2*x-7 = 0
8*x-9-7 = 0
8*x-16 = 0
8*x-16 = 0
8*x-16 = 0 // + 16
8*x = 16 // : 8
x = 16/8
x = 2
x = 2
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