8r+1-2=7r+8

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Solution for 8r+1-2=7r+8 equation: 



8r+1-2=7r+8

We move all terms to the left:

8r+1-2-(7r+8)=0

We add all the numbers together, and all the variables

8r-(7r+8)-1=0

We get rid of parentheses

8r-7r-8-1=0

We add all the numbers together, and all the variables

r-9=0

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

r=9

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