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(5/4)*x-(9/5) = (1/8)*x // - (1/8)*x
(5/4)*x-((1/8)*x)-(9/5) = 0
(5/4)*x+(-1/8)*x-9/5 = 0
9/8*x-9/5 = 0 // + 9/5
9/8*x = 9/5 // : 9/8
x = 9/5/9/8
x = 8/5
x = 8/5
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