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5(r+2)=-105
We simplify the equation to the form, which is simple to understand
5(r+2)=-105
Reorder the terms in parentheses
+(+5r+10)=-105
Remove unnecessary parentheses
+5r+10=-105
We move all terms containing r to the left and all other terms to the right.
+5r=-105-10
We simplify left and right side of the equation.
+5r=-115
We divide both sides of the equation by 5 to get r.
r=-23
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