8r+2=7r+1

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



8r+2=7r+1

We move all terms to the left:

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

We get rid of parentheses

8r-7r-1+2=0

We add all the numbers together, and all the variables

r+1=0

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

r=-1

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