-85=-5n-2n-1

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Solution for -85=-5n-2n-1 equation: 


n in (-oo:+oo)

-85 = -5*n-(2*n)-1 // + -5*n-(2*n)-1

2*n-(-5*n)-85+1 = 0

5*n+2*n-85+1 = 0

7*n-84 = 0 // + 84

7*n = 84 // : 7

n = 84/7

n = 12

n = 12

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