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