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-36+3r=-2(r+3)
We simplify the equation to the form, which is simple to understand
-36+3r=-2(r+3)
Reorder the terms in parentheses
-36+3r=+(-2r-6)
Remove unnecessary parentheses
-36+3r=-2r-6
We move all terms containing r to the left and all other terms to the right.
+3r+2r=-6+36
We simplify left and right side of the equation.
+5r=+30
We divide both sides of the equation by 5 to get r.
r=6
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