r+18=-8r-3(1-2r)

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Solution for r+18=-8r-3(1-2r) equation: 



r+18=-8r-3(1-2r)

We move all terms to the left:

r+18-(-8r-3(1-2r))=0

We add all the numbers together, and all the variables

r-(-8r-3(-2r+1))+18=0



We calculate terms in parentheses: -(-8r-3(-2r+1)), so:

-8r-3(-2r+1)

We multiply parentheses

-8r+6r-3

We add all the numbers together, and all the variables

-2r-3

Back to the equation:

-(-2r-3)



We get rid of parentheses

r+2r+3+18=0

We add all the numbers together, and all the variables

3r+21=0

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

3r=-21

r=-21/3

r=-7

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