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