7r=11+8r

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Solution for 7r=11+8r equation: 



7r=11+8r

We move all terms to the left:

7r-(11+8r)=0

We add all the numbers together, and all the variables

7r-(8r+11)=0

We get rid of parentheses

7r-8r-11=0

We add all the numbers together, and all the variables

-1r-11=0

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

-r=11

r=11/-1

r=-11

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