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n in (-oo:+oo)
(3/2)*(2*n+2)-((3/5)*(3*n-1)) = (8/5)*(6*n+9) // - (8/5)*(6*n+9)
(3/2)*(2*n+2)-((3/5)*(3*n-1))-((8/5)*(6*n+9)) = 0
(3/2)*(2*n+2)+(-3/5)*(3*n-1)+(-8/5)*(6*n+9) = 0
3/2*(2*n+2)-3/5*(3*n-1)-8/5*(6*n+9) = 0
3/2*(2*n+2)-3/5*(3*n-1)-8/5*(6*n+9) = 0
6/5*n-48/5*n-72/5+18/5 = 0
-42/5*n-54/5 = 0
-42/5*n-54/5 = 0
-42/5*n-54/5 = 0 // + 54/5
-42/5*n = 54/5 // : -42/5
n = 54/5/(-42/5)
n = -9/7
n = -9/7
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