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2r-5.3=10.7
We simplify the equation to the form, which is simple to understand
2r-5.3=10.7
We move all terms containing r to the left and all other terms to the right.
+2r=+10.7+5.3
We simplify left and right side of the equation.
+2r=+16
We divide both sides of the equation by 2 to get r.
r=8
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