-9r+7=3r+19

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



-9r+7=3r+19

We move all terms to the left:

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

We get rid of parentheses

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

We add all the numbers together, and all the variables

-12r-12=0

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

-12r=12

r=12/-12

r=-1

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