-9=5n+2n-2

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Solution for -9=5n+2n-2 equation: 


n in (-oo:+oo)

-9 = 5*n+2*n-2 // - 5*n+2*n-2

2-(5*n)-(2*n)-9 = 0

2-5*n-2*n-9 = 0

-7*n-7 = 0 // + 7

-7*n = 7 // : -7

n = 7/(-7)

n = -1

n = -1

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