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r/2+r=6
We simplify the equation to the form, which is simple to understand
r/2+r=6
We move all terms containing r to the left and all other terms to the right.
+ 0.5r+1r=+6
We simplify left and right side of the equation.
+1.5r=+6
We divide both sides of the equation by 1.5 to get r.
r=4
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