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7*x-(4/5) = 16 // - 16
7*x-(4/5)-16 = 0
7*x-4/5-16 = 0
7*x-84/5 = 0 // + 84/5
7*x = 84/5 // : 7
x = 84/5/7
x = 12/5
x = 12/5
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