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2.5r=30
We simplify the equation to the form, which is simple to understand
2.5r=30
We move all terms containing r to the left and all other terms to the right.
+2.5r=+30
We simplify left and right side of the equation.
+2.5r=+30
We divide both sides of the equation by 2.5 to get r.
r=12
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