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(x+2)/2 = 4/1-((x-4)/5) // - 4/1-((x-4)/5)
(x+2)/2+(x-4)/5-(4/1) = 0
(x+2)/2+(x-4)/5-4 = 0
(5*(x+2))/(2*5)+(2*(x-4))/(2*5)+(-4*2*5)/(2*5) = 0
5*(x+2)+2*(x-4)-4*2*5 = 0
7*x-40+2 = 0
7*x-38 = 0
(7*x-38)/(2*5) = 0
(7*x-38)/(2*5) = 0 // * 2*5
7*x-38 = 0
7*x-38 = 0 // + 38
7*x = 38 // : 7
x = 38/7
x = 38/7
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