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2*x-(4/5) = 3*x+3/10 // - 3*x+3/10
2*x-(3*x)-(4/5)-(3/10) = 0
2*x-3*x-4/5-3/10 = 0
-x-11/10 = 0 // + 11/10
-x = 11/10 // * -1
x = -11/10
x = -11/10
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