-9(-8+r)=171

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Solution for -9(-8+r)=171 equation:


-9(-8+r)=171

We simplify the equation to the form, which is simple to understand 
-9(-8+r)=171

Reorder the terms in parentheses
+(+72-9r)=171

Remove unnecessary parentheses
+72-9r=+171

We move all terms containing r to the left and all other terms to the right. 
-9r=+171-72

We simplify left and right side of the equation. 
-9r=+99

We divide both sides of the equation by -9 to get r. 
r=-11

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