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x in (-oo:+oo)
(1/2)*(8-(5*x)) = (1/3)*(6-(4*x)) // - (1/3)*(6-(4*x))
(1/2)*(8-(5*x))-((1/3)*(6-(4*x))) = 0
(1/2)*(8-5*x)+(-1/3)*(6-4*x) = 0
1/2*(8-5*x)-1/3*(6-4*x) = 0
1/2*(8-5*x)-1/3*(6-4*x) = 0
2-7/6*x = 0
2-7/6*x = 0
2-7/6*x = 0 // - 2
-7/6*x = -2 // : -7/6
x = -2/(-7/6)
x = 12/7
x = 12/7
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