-7=-7r-6r

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Solution for -7=-7r-6r equation: 



-7=-7r-6r

We move all terms to the left:

-7-(-7r-6r)=0

We add all the numbers together, and all the variables

-(-13r)-7=0

We get rid of parentheses

13r-7=0

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

13r=7

r=7/13

r=7/13

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