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(3/4)*x-1/2 = 5/2 // - 5/2
(3/4)*x-1/2-(5/2) = 0
(3/4)*x-1/2-5/2 = 0
3/4*x-3 = 0 // + 3
3/4*x = 3 // : 3/4
x = 3/3/4
x = 4
x = 4
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