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(1/5)*(5*x-8) = 7 // - 7
(1/5)*(5*x-8)-7 = 0
1/5*(5*x-8)-7 = 0
1/5*(5*x-8)-7 = 0
x-43/5 = 0
x-43/5 = 0
x-43/5 = 0 // + 43/5
x = 43/5
x = 43/5
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