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7+7(8+4r)=r-5(1-2r)
We simplify the equation to the form, which is simple to understand
7+7(8+4r)=r-5(1-2r)
Reorder the terms in parentheses
7+(+56+28r)=r-5*(1-2r)
Remove unnecessary parentheses
+7+56+28r=+r-5+*(+1-2r+)
Reorder the terms in parentheses
7+56+28r=r+(-5+10r)
Remove unnecessary parentheses
+7+56+28r=+r-5+10r
We move all terms containing r to the left and all other terms to the right.
+28r-1r-10r=-5-7-56
We simplify left and right side of the equation.
+17r=-68
We divide both sides of the equation by 17 to get r.
r=-4
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