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x in (-oo:+oo)
(x-8)/3 = 2*x // - 2*x
(x-8)/3-(2*x) = 0
(x-8)/3-2*x = 0
(x-8)/3+(-2*3*x)/3 = 0
x-2*3*x-8 = 0
-5*x-8 = 0
(-5*x-8)/3 = 0
(-5*x-8)/3 = 0 // * 3
-5*x-8 = 0
-5*x-8 = 0 // + 8
-5*x = 8 // : -5
x = 8/(-5)
x = -8/5
x = -8/5
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