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(5/2)*x+(1/2)*x = x+5/4 // - x+5/4
(5/2)*x+(1/2)*x-x-(5/4) = 0
(5/2)*x+(1/2)*x-x-5/4 = 0
2*x-5/4 = 0 // + 5/4
2*x = 5/4 // : 2
x = 5/4/2
x = 5/8
x = 5/8
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