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8.28=6r+6
We move all terms to the left:
8.28-(6r+6)=0
We get rid of parentheses
-6r-6+8.28=0
We add all the numbers together, and all the variables
-6r+2.28=0
We move all terms containing r to the left, all other terms to the right
-6r=-2.28
r=-2.28/-6
r=1/2.63157894737
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