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x in (-oo:+oo)
(1/2)*(8*x-7) = (2/3)*(15*x-12) // - (2/3)*(15*x-12)
(1/2)*(8*x-7)-((2/3)*(15*x-12)) = 0
(1/2)*(8*x-7)+(-2/3)*(15*x-12) = 0
1/2*(8*x-7)-2/3*(15*x-12) = 0
1/2*(8*x-7)-2/3*(15*x-12) = 0
9/2-6*x = 0
9/2-6*x = 0
9/2-6*x = 0 // - 9/2
-6*x = -9/2 // : -6
x = -9/2/(-6)
x = 3/4
x = 3/4
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