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25r-7=8
We simplify the equation to the form, which is simple to understand
25r-7=8
We move all terms containing r to the left and all other terms to the right.
+25r=+8+7
We simplify left and right side of the equation.
+25r=+15
We divide both sides of the equation by 25 to get r.
r=0.6
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