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(5*x)/3 = 77/8 // - 77/8
(5*x)/3-(77/8) = 0
(5*x)/3-77/8 = 0
5/3*x-77/8 = 0 // + 77/8
5/3*x = 77/8 // : 5/3
x = 77/8/5/3
x = 231/40
x = 231/40
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