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x in (-oo:+oo)
(1/4)*x-((1/2)*x)+3 = 3*(x+4) // - 3*(x+4)
(1/4)*x-(3*(x+4))-((1/2)*x)+3 = 0
(1/4)*x-3*(x+4)+(-1/2)*x+3 = 0
x/4-3*(x+4)-x/2+3 = 0
(-3*2*4*(x+4))/(2*4)+(2*x)/(2*4)+(4*(-x))/(2*4)+(2*3*4)/(2*4) = 0
2*x-3*2*4*(x+4)+4*(-x)+2*3*4 = 0
24-22*x-4*x-96 = 0
24-26*x-96 = 0
-26*x-72 = 0
(-26*x-72)/(2*4) = 0
(-26*x-72)/(2*4) = 0 // * 2*4
-26*x-72 = 0
-26*x-72 = 0 // + 72
-26*x = 72 // : -26
x = 72/(-26)
x = -36/13
x = -36/13
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