8r+2=72+r

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Solution for 8r+2=72+r equation: 



8r+2=72+r

We move all terms to the left:

8r+2-(72+r)=0

We add all the numbers together, and all the variables

8r-(r+72)+2=0

We get rid of parentheses

8r-r-72+2=0

We add all the numbers together, and all the variables

7r-70=0

We move all terms containing r to the left, all other terms to the right

7r=70

r=70/7

r=10

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