1-6r+7+4=-8r-r

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Solution for 1-6r+7+4=-8r-r equation: 



1-6r+7+4=-8r-r

We move all terms to the left:

1-6r+7+4-(-8r-r)=0

We add all the numbers together, and all the variables

-6r-(-9r)+1+7+4=0

We add all the numbers together, and all the variables

-6r-(-9r)+12=0

We get rid of parentheses

-6r+9r+12=0

We add all the numbers together, and all the variables

3r+12=0

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

3r=-12

r=-12/3

r=-4

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