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12r-53=2(r-3)-8
We simplify the equation to the form, which is simple to understand
12r-53=2(r-3)-8
Reorder the terms in parentheses
12r-53=+(+2r-6)-8
Remove unnecessary parentheses
+12r-53=+2r-6-8
We move all terms containing r to the left and all other terms to the right.
+12r-2r=-6-8+53
We simplify left and right side of the equation.
+10r=+39
We divide both sides of the equation by 10 to get r.
r=3.9
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