-16=-7r-r

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Solution for -16=-7r-r equation: 



-16=-7r-r

We move all terms to the left:

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

We add all the numbers together, and all the variables

-(-8r)-16=0

We get rid of parentheses

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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