(2n+1)/(n+2)=5/4

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Solution for (2n+1)/(n+2)=5/4 equation: 


D( n )

n+2 = 0

n+2 = 0

n+2 = 0

n+2 = 0 // - 2

n = -2

n in (-oo:-2) U (-2:+oo)

(2*n+1)/(n+2) = 5/4 // - 5/4

(2*n+1)/(n+2)-(5/4) = 0

(2*n+1)/(n+2)-5/4 = 0

(4*(2*n+1))/(4*(n+2))+(-5*(n+2))/(4*(n+2)) = 0

4*(2*n+1)-5*(n+2) = 0

3*n-6 = 0

(3*n-6)/(4*(n+2)) = 0

(3*n-6)/(4*(n+2)) = 0 // * 4*(n+2)

3*n-6 = 0

3*n-6 = 0 // + 6

3*n = 6 // : 3

n = 6/3

n = 2

n = 2

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