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2r+36=6r+12
We simplify the equation to the form, which is simple to understand
2r+36=6r+12
We move all terms containing r to the left and all other terms to the right.
+2r-6r=+12-36
We simplify left and right side of the equation.
-4r=-24
We divide both sides of the equation by -4 to get r.
r=6
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