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x in (-oo:+oo)
(2/13)*x-((1/2)*x) = (3/4)*x+2 // - (3/4)*x+2
(2/13)*x-((1/2)*x)-((3/4)*x)-2 = 0
(2/13)*x+(-1/2)*x+(-3/4)*x-2 = 0
-57/52*x-2 = 0 // + 2
-57/52*x = 2 // : -57/52
x = 2/(-57/52)
x = -104/57
x = -104/57
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