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(2/3)*(3*x-6) = (1/2)*(2*x+10) // - (1/2)*(2*x+10)
(2/3)*(3*x-6)-((1/2)*(2*x+10)) = 0
(2/3)*(3*x-6)+(-1/2)*(2*x+10) = 0
2/3*(3*x-6)-1/2*(2*x+10) = 0
2/3*(3*x-6)-1/2*(2*x+10) = 0
x-9 = 0
x-9 = 0
x-9 = 0 // + 9
x = 9
x = 9
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