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8r-6=7
We simplify the equation to the form, which is simple to understand
8r-6=7
We move all terms containing r to the left and all other terms to the right.
+8r=+7+6
We simplify left and right side of the equation.
+8r=+13
We divide both sides of the equation by 8 to get r.
r=1.625
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