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