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x in (-oo:+oo)
(x+2)/3 = x+4 // - x+4
(x+2)/3-x-4 = 0
(x+2)/3+(3*(-x))/3+(-4*3)/3 = 0
x+3*(-x)-4*3+2 = 0
2-2*x-12 = 0
-2*x-10 = 0
(-2*x-10)/3 = 0
(-2*x-10)/3 = 0 // * 3
-2*x-10 = 0
-2*x-10 = 0 // + 10
-2*x = 10 // : -2
x = 10/(-2)
x = -5
x = -5
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