-6r-7=7+8r

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Solution for -6r-7=7+8r equation: 



-6r-7=7+8r

We move all terms to the left:

-6r-7-(7+8r)=0

We add all the numbers together, and all the variables

-6r-(8r+7)-7=0

We get rid of parentheses

-6r-8r-7-7=0

We add all the numbers together, and all the variables

-14r-14=0

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

-14r=14

r=14/-14

r=-1

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