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x in (-oo:+oo)
(-3/4)*x-9 = (4/2)*x-2 // - (4/2)*x-2
(-3/4)*x-((4/2)*x)-9+2 = 0
(-3/4)*x-2*x-9+2 = 0
-11/4*x-7 = 0 // + 7
-11/4*x = 7 // : -11/4
x = 7/(-11/4)
x = -28/11
x = -28/11
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