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(7*x-3)/3 = 2*x // - 2*x
(7*x-3)/3-(2*x) = 0
(7*x-3)/3-2*x = 0
(7*x-3)/3+(-2*3*x)/3 = 0
7*x-2*3*x-3 = 0
x-3 = 0
(x-3)/3 = 0
(x-3)/3 = 0 // * 3
x-3 = 0
x-3 = 0 // + 3
x = 3
x = 3
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