r+8=-8-r

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Solution for r+8=-8-r equation: 



r+8=-8-r

We move all terms to the left:

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

We add all the numbers together, and all the variables

r-(-1r-8)+8=0

We get rid of parentheses

r+1r+8+8=0

We add all the numbers together, and all the variables

2r+16=0

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

2r=-16

r=-16/2

r=-8

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