-18=6-8r

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Solution for -18=6-8r equation: 



-18=6-8r

We move all terms to the left:

-18-(6-8r)=0

We add all the numbers together, and all the variables

-(-8r+6)-18=0

We get rid of parentheses

8r-6-18=0

We add all the numbers together, and all the variables

8r-24=0

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

8r=24

r=24/8

r=3

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