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