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5*x-2*x-(1/3) = 107/3 // - 107/3
5*x-2*x-(1/3)-(107/3) = 0
5*x-2*x-1/3-107/3 = 0
3*x-36 = 0 // + 36
3*x = 36 // : 3
x = 36/3
x = 12
x = 12
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