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(x+2)/2+(4*x)/5 = x-(2/3) // - x-(2/3)
(x+2)/2+(4*x)/5-x+2/3 = 0
(3*5*(x+2))/(2*3*5)+(2*3*4*x)/(2*3*5)+(2*3*5*(-x))/(2*3*5)+(5*2^2)/(2*3*5) = 0
3*5*(x+2)+2*3*4*x+2*3*5*(-x)+5*2^2 = 0
39*x-30*x+20+30 = 0
9*x+20+30 = 0
9*x+50 = 0
(9*x+50)/(2*3*5) = 0
(9*x+50)/(2*3*5) = 0 // * 2*3*5
9*x+50 = 0
9*x+50 = 0 // - 50
9*x = -50 // : 9
x = -50/9
x = -50/9
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