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(3/5)*(x-4) = 27 // - 27
(3/5)*(x-4)-27 = 0
3/5*(x-4)-27 = 0
3/5*(x-4)-27 = 0
3/5*x-147/5 = 0
3/5*x-147/5 = 0
3/5*x-147/5 = 0 // + 147/5
3/5*x = 147/5 // : 3/5
x = 147/5/3/5
x = 49
x = 49
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