91=-n-7(n-5)

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Solution for 91=-n-7(n-5) equation:


91=-n-7(n-5)

We simplify the equation to the form, which is simple to understand 
91=-n-7(n-5)

Reorder the terms in parentheses
91=-n+(-7n+35)

Remove unnecessary parentheses
+91=-n-7n+35

We move all terms containing n to the left and all other terms to the right. 
+1n+7n=+35-91

We simplify left and right side of the equation. 
+8n=-56

We divide both sides of the equation by 8 to get n. 
n=-7

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