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n in (-oo:+oo)
(14*n)/3-(2*((10*n)/3-1/5)) = -13/5 // + -13/5
(14*n)/3-(2*((10*n)/3-1/5))-(-13/5) = 0
(14*n)/3-2*((10*n)/3-1/5)+13/5 = 0
(14*n)/3-2*(10/3*n-1/5)+13/5 = 0
(-2*3*5*(10/3*n-1/5))/(3*5)+(5*14*n)/(3*5)+(3*13)/(3*5) = 0
5*14*n-2*3*5*(10/3*n-1/5)+3*13 = 0
6-30*n+39 = 0
45-30*n = 0
(45-30*n)/(3*5) = 0
(45-30*n)/(3*5) = 0 // * 3*5
45-30*n = 0
45-30*n = 0 // - 45
-30*n = -45 // : -30
n = -45/(-30)
n = 3/2
n = 3/2
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