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5r+5(r+2)=70
We simplify the equation to the form, which is simple to understand
5r+5(r+2)=70
Reorder the terms in parentheses
5r+(+5r+10)=70
Remove unnecessary parentheses
+5r+5r+10=+70
We move all terms containing r to the left and all other terms to the right.
+5r+5r=+70-10
We simplify left and right side of the equation.
+10r=+60
We divide both sides of the equation by 10 to get r.
r=6
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