(n-5)/(n+8)=2/7

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Solution for (n-5)/(n+8)=2/7 equation: 


D( n )

n+8 = 0

n+8 = 0

n+8 = 0

n+8 = 0 // - 8

n = -8

n in (-oo:-8) U (-8:+oo)

(n-5)/(n+8) = 2/7 // - 2/7

(n-5)/(n+8)-(2/7) = 0

(n-5)/(n+8)-2/7 = 0

(7*(n-5))/(7*(n+8))+(-2*(n+8))/(7*(n+8)) = 0

7*(n-5)-2*(n+8) = 0

5*n-51 = 0

(5*n-51)/(7*(n+8)) = 0

(5*n-51)/(7*(n+8)) = 0 // * 7*(n+8)

5*n-51 = 0

5*n-51 = 0 // + 51

5*n = 51 // : 5

n = 51/5

n = 51/5

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