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(2*(x-4))/3 = 12 // - 12
(2*(x-4))/3-12 = 0
(2*(x-4))/3+(-12*3)/3 = 0
2*(x-4)-12*3 = 0
2*x-44 = 0
(2*x-44)/3 = 0
(2*x-44)/3 = 0 // * 3
2*x-44 = 0
2*x-44 = 0 // + 44
2*x = 44 // : 2
x = 44/2
x = 22
x = 22
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