16=-4r-4r

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Solution for 16=-4r-4r equation: 



16=-4r-4r

We move all terms to the left:

16-(-4r-4r)=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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