2n+1+n=-4/5

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


n in (-oo:+oo)

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

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

2*n+n+4/5+1 = 0

3*n+9/5 = 0 // - 9/5

3*n = -9/5 // : 3

n = -9/5/3

n = -3/5

n = -3/5

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