7r-9=3r+19

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Solution for 7r-9=3r+19 equation: 



7r-9=3r+19

We move all terms to the left:

7r-9-(3r+19)=0

We get rid of parentheses

7r-3r-19-9=0

We add all the numbers together, and all the variables

4r-28=0

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

4r=28

r=28/4

r=7

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