3(r+7)=7+5r

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Solution for 3(r+7)=7+5r equation:


3(r+7)=7+5r

We simplify the equation to the form, which is simple to understand 
3(r+7)=7+5r

Reorder the terms in parentheses
+(+3r+21)=7+5r

Remove unnecessary parentheses
+3r+21=+7+5r

We move all terms containing r to the left and all other terms to the right. 
+3r-5r=+7-21

We simplify left and right side of the equation. 
-2r=-14

We divide both sides of the equation by -2 to get r. 
r=7

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