3(-2-7r)=-111

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Solution for 3(-2-7r)=-111 equation:


3(-2-7r)=-111

We simplify the equation to the form, which is simple to understand 
3(-2-7r)=-111

Reorder the terms in parentheses
+(-6-21r)=-111

Remove unnecessary parentheses
-6-21r=-111

We move all terms containing r to the left and all other terms to the right. 
-21r=-111+6

We simplify left and right side of the equation. 
-21r=-105

We divide both sides of the equation by -21 to get r. 
r=5

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