6r+7=2r-9.

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



6r+7=2r-9.

We move all terms to the left:

6r+7-(2r-9.)=0

We add all the numbers together, and all the variables

6r-(2r-9)+7=0

We get rid of parentheses

6r-2r+9+7=0

We add all the numbers together, and all the variables

4r+16=0

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

4r=-16

r=-16/4

r=-4

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