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x in (-oo:+oo)
3*(x-2) = (4*x)/5 // - (4*x)/5
3*(x-2)-((4*x)/5) = 0
3*(x-2)+(-4/5)*x = 0
3*(x-2)+(-4*x)/5 = 0
(3*5*(x-2))/5+(-4*x)/5 = 0
3*5*(x-2)-4*x = 0
11*x-30 = 0
(11*x-30)/5 = 0
(11*x-30)/5 = 0 // * 5
11*x-30 = 0
11*x-30 = 0 // + 30
11*x = 30 // : 11
x = 30/11
x = 30/11
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