8(r+9)=9+r

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Solution for 8(r+9)=9+r equation: 



8(r+9)=9+r

We move all terms to the left:

8(r+9)-(9+r)=0

We add all the numbers together, and all the variables

8(r+9)-(r+9)=0

We multiply parentheses

8r-(r+9)+72=0

We get rid of parentheses

8r-r-9+72=0

We add all the numbers together, and all the variables

7r+63=0

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

7r=-63

r=-63/7

r=-9

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