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(1/3)*x-(4/5) = 7/8 // - 7/8
(1/3)*x-(4/5)-(7/8) = 0
(1/3)*x-4/5-7/8 = 0
1/3*x-67/40 = 0 // + 67/40
1/3*x = 67/40 // : 1/3
x = 67/40/1/3
x = 201/40
x = 201/40
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