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x in (-oo:+oo)
(2*x+1)/3 = (x+6)/2 // - (x+6)/2
(2*x+1)/3-((x+6)/2) = 0
(2*x+1)/3+(-1*(x+6))/2 = 0
(2*(2*x+1))/(2*3)+(-1*3*(x+6))/(2*3) = 0
2*(2*x+1)-1*3*(x+6) = 0
x-16 = 0
(x-16)/(2*3) = 0
(x-16)/(2*3) = 0 // * 2*3
x-16 = 0
x-16 = 0 // + 16
x = 16
x = 16
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