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4r - 6 = -12 + 2r
We simplify the equation to the form, which is simple to understand
4r-6=-12+2r
We move all terms containing r to the left and all other terms to the right.
+4r-2r=-12+6
We simplify left and right side of the equation.
+2r=-6
We divide both sides of the equation by 2 to get r.
r=-3
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