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65+4.25r=99
We simplify the equation to the form, which is simple to understand
65+4.25r=99
We move all terms containing r to the left and all other terms to the right.
+4.25r=+99-65
We simplify left and right side of the equation.
+4.25r=+34
We divide both sides of the equation by 4.25 to get r.
r=8
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