8r-4r+8=9r+8-r

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Solution for 8r-4r+8=9r+8-r equation: 



8r-4r+8=9r+8-r

We move all terms to the left:

8r-4r+8-(9r+8-r)=0

We add all the numbers together, and all the variables

8r-4r-(8r+8)+8=0

We add all the numbers together, and all the variables

4r-(8r+8)+8=0

We get rid of parentheses

4r-8r-8+8=0

We add all the numbers together, and all the variables

-4r=0

r=0/-4

r=0

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