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-2r+8r=6
We simplify the equation to the form, which is simple to understand
-2r+8r=6
We move all terms containing r to the left and all other terms to the right.
-2r+8r=+6
We simplify left and right side of the equation.
+6r=+6
We divide both sides of the equation by 6 to get r.
r=1
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