1-8r=7r+8

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



1-8r=7r+8

We move all terms to the left:

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

We get rid of parentheses

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

We add all the numbers together, and all the variables

-15r-7=0

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

-15r=7

r=7/-15

r=-7/15

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