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8r+1=12r+27
We simplify the equation to the form, which is simple to understand
8r+1=12r+27
We move all terms containing r to the left and all other terms to the right.
+8r-12r=+27-1
We simplify left and right side of the equation.
-4r=+26
We divide both sides of the equation by -4 to get r.
r=-6.5
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