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x in (-oo:+oo)
(2/5)*(x-2) = x+4 // - x+4
(2/5)*(x-2)-x-4 = 0
2/5*(x-2)-x-4 = 0
2/5*(x-2)-x-4 = 0
-3/5*x-4-4/5 = 0
-3/5*x-24/5 = 0
-3/5*x-24/5 = 0
-3/5*x-24/5 = 0 // + 24/5
-3/5*x = 24/5 // : -3/5
x = 24/5/(-3/5)
x = -8
x = -8
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