8+7r-4=-2r=6+9r

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Solution for 8+7r-4=-2r=6+9r equation: 



8+7r-4=-2r=6+9r

We move all terms to the left:

8+7r-4-(-2r)=0

We add all the numbers together, and all the variables

7r-(-2r)+4=0

We get rid of parentheses

7r+2r+4=0

We add all the numbers together, and all the variables

9r+4=0

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

9r=-4

r=-4/9

r=-4/9

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