-65=5n+7n+7

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Solution for -65=5n+7n+7 equation: 


n in (-oo:+oo)

-65 = 5*n+7*n+7 // - 5*n+7*n+7

-(5*n)-(7*n)-65-7 = 0

-5*n-7*n-65-7 = 0

-12*n-72 = 0 // + 72

-12*n = 72 // : -12

n = 72/(-12)

n = -6

n = -6

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