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