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4*x-(5/4) = (3*x)/8 // - (3*x)/8
4*x-((3*x)/8)-(5/4) = 0
4*x+(-3/8)*x-5/4 = 0
29/8*x-5/4 = 0 // + 5/4
29/8*x = 5/4 // : 29/8
x = 5/4/29/8
x = 10/29
x = 10/29
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