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3*x-(8/12) = x/5 // - x/5
3*x-(x/5)-(8/12) = 0
3*x-(x/5)-2/3 = 0
14/5*x-2/3 = 0 // + 2/3
14/5*x = 2/3 // : 14/5
x = 2/3/14/5
x = 5/21
x = 5/21
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