7r+11=3r-9

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Solution for 7r+11=3r-9 equation: 



7r+11=3r-9

We move all terms to the left:

7r+11-(3r-9)=0

We get rid of parentheses

7r-3r+9+11=0

We add all the numbers together, and all the variables

4r+20=0

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

4r=-20

r=-20/4

r=-5

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