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x in (-oo:+oo)
(6*(x+3))/4 = 4*x-2 // - 4*x-2
(6*(x+3))/4-(4*x)+2 = 0
(6*(x+3))/4-4*x+2 = 0
(6*(x+3))/4+(-4*4*x)/4+(2*4)/4 = 0
6*(x+3)-4*4*x+2*4 = 0
8-10*x+18 = 0
26-10*x = 0
(26-10*x)/4 = 0
(26-10*x)/4 = 0 // * 4
26-10*x = 0
26-10*x = 0 // - 26
-10*x = -26 // : -10
x = -26/(-10)
x = 13/5
x = 13/5
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