r-6+6=-r-6

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Solution for r-6+6=-r-6 equation: 



r-6+6=-r-6

We move all terms to the left:

r-6+6-(-r-6)=0

We add all the numbers together, and all the variables

r-(-1r-6)-6+6=0

We add all the numbers together, and all the variables

r-(-1r-6)=0

We get rid of parentheses

r+1r+6=0

We add all the numbers together, and all the variables

2r+6=0

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

2r=-6

r=-6/2

r=-3

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