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39.75-r=6.50
We simplify the equation to the form, which is simple to understand
39.75-r=6.50
We move all terms containing r to the left and all other terms to the right.
-1r=+6.5-39.75
We simplify left and right side of the equation.
-1r=-33.25
We divide both sides of the equation by -1 to get r.
r=33.25
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