-7=-6r-r

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



-7=-6r-r

We move all terms to the left:

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

We add all the numbers together, and all the variables

-(-7r)-7=0

We get rid of parentheses

7r-7=0

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

7r=7

r=7/7

r=1

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