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x in (-oo:+oo)
(-4*x)/3-(3/2) = (-5*x)/4 // - (-5*x)/4
(-4*x)/3-((-5*x)/4)-(3/2) = 0
(-4*x)/3+(5/4)*x-3/2 = 0
-1/12*x-3/2 = 0 // + 3/2
-1/12*x = 3/2 // : -1/12
x = 3/2/(-1/12)
x = -18
x = -18
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