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2(4r+4)=-16
We simplify the equation to the form, which is simple to understand
2(4r+4)=-16
Reorder the terms in parentheses
+(+8r+8)=-16
Remove unnecessary parentheses
+8r+8=-16
We move all terms containing r to the left and all other terms to the right.
+8r=-16-8
We simplify left and right side of the equation.
+8r=-24
We divide both sides of the equation by 8 to get r.
r=-3
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