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(3/4)*x+5*x+1/2 = 25/4 // - 25/4
(3/4)*x+5*x+1/2-(25/4) = 0
(3/4)*x+5*x+1/2-25/4 = 0
23/4*x-23/4 = 0 // + 23/4
23/4*x = 23/4 // : 23/4
x = 23/4/23/4
x = 1
x = 1
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