7r=16-r

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Solution for 7r=16-r equation: 



7r=16-r

We move all terms to the left:

7r-(16-r)=0

We add all the numbers together, and all the variables

7r-(-1r+16)=0

We get rid of parentheses

7r+1r-16=0

We add all the numbers together, and all the variables

8r-16=0

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

8r=16

r=16/8

r=2

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