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-(-6r+8)=-7(r+3)
We simplify the equation to the form, which is simple to understand
-(-6r+8)=-7(r+3)
Remove unnecessary parentheses
+6r-8=-7*(r+3)
Reorder the terms in parentheses
+6r-8=+(-7r-21)
Remove unnecessary parentheses
+6r-8=-7r-21
We move all terms containing r to the left and all other terms to the right.
+6r+7r=-21+8
We simplify left and right side of the equation.
+13r=-13
We divide both sides of the equation by 13 to get r.
r=-1
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