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28-7r=3(1+6r)
We simplify the equation to the form, which is simple to understand
28-7r=3(1+6r)
Reorder the terms in parentheses
28-7r=+(+3+18r)
Remove unnecessary parentheses
+28-7r=+3+18r
We move all terms containing r to the left and all other terms to the right.
-7r-18r=+3-28
We simplify left and right side of the equation.
-25r=-25
We divide both sides of the equation by -25 to get r.
r=1
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