(2/5)n+(1/10)=(1/2)(n+4)

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Solution for (2/5)n+(1/10)=(1/2)(n+4) equation: 


n in (-oo:+oo)

(2/5)*n+1/10 = (1/2)*(n+4) // - (1/2)*(n+4)

(2/5)*n-((1/2)*(n+4))+1/10 = 0

(-1/2)*(n+4)+(2/5)*n+1/10 = 0

(2*n)/5-1/2*(n+4)+1/10 = 0

(-1/2*5*10*(n+4))/(5*10)+(2*10*n)/(5*10)+(1*5)/(5*10) = 0

2*10*n-1/2*5*10*(n+4)+1*5 = 0

5-5*n-100 = 0

-5*n-95 = 0

(-5*n-95)/(5*10) = 0

(-5*n-95)/(5*10) = 0 // * 5*10

-5*n-95 = 0

-5*n-95 = 0 // + 95

-5*n = 95 // : -5

n = 95/(-5)

n = -19

n = -19

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