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(2/5)*x-(4/3) = 3*x+1/2 // - 3*x+1/2
(2/5)*x-(3*x)-(4/3)-(1/2) = 0
(2/5)*x-3*x-4/3-1/2 = 0
-13/5*x-11/6 = 0 // + 11/6
-13/5*x = 11/6 // : -13/5
x = 11/6/(-13/5)
x = -55/78
x = -55/78
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