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(3/8)*x+1/2 = 101/2 // - 101/2
(3/8)*x+1/2-(101/2) = 0
(3/8)*x+1/2-101/2 = 0
3/8*x-50 = 0 // + 50
3/8*x = 50 // : 3/8
x = 50/3/8
x = 400/3
x = 400/3
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