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(3/4)*x+3/8 = 9/8 // - 9/8
(3/4)*x+3/8-(9/8) = 0
(3/4)*x+3/8-9/8 = 0
3/4*x-3/4 = 0 // + 3/4
3/4*x = 3/4 // : 3/4
x = 3/4/3/4
x = 1
x = 1
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