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(2/3)*(x+6) = x+4/5 // - x+4/5
(2/3)*(x+6)-x-(4/5) = 0
(2/3)*(x+6)-x-4/5 = 0
2/3*(x+6)-x-4/5 = 0
(2/3*5*(x+6))/5+(5*(-x))/5-4/5 = 0
2/3*5*(x+6)+5*(-x)-4 = 0
20-5/3*x-4 = 0
16-5/3*x = 0
(16-5/3*x)/5 = 0
(16-5/3*x)/5 = 0 // * 5
16-5/3*x = 0
16-5/3*x = 0 // - 16
-5/3*x = -16 // : -5/3
x = -16/(-5/3)
x = 48/5
x = 48/5
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