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(x+3)/8 = x/4+1/5 // - x/4+1/5
(x+3)/8-(x/4)-(1/5) = 0
(x+3)/8-(x/4)-1/5 = 0
(x+3)/8-x/4-1/5 = 0
(4*5*(x+3))/(4*5*8)+(5*8*(-x))/(4*5*8)+(-1*4*8)/(4*5*8) = 0
4*5*(x+3)+5*8*(-x)-1*4*8 = 0
60-20*x-32 = 0
28-20*x = 0
(28-20*x)/(4*5*8) = 0
(28-20*x)/(4*5*8) = 0 // * 4*5*8
28-20*x = 0
28-20*x = 0 // - 28
-20*x = -28 // : -20
x = -28/(-20)
x = 7/5
x = 7/5
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