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