2+9r=8r+9

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Solution for 2+9r=8r+9 equation: 



2+9r=8r+9

We move all terms to the left:

2+9r-(8r+9)=0

We get rid of parentheses

9r-8r-9+2=0

We add all the numbers together, and all the variables

r-7=0

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

r=7

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