18=-6(7r-3)+42r

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Solution for 18=-6(7r-3)+42r equation: 



18=-6(7r-3)+42r

We move all terms to the left:

18-(-6(7r-3)+42r)=0



We calculate terms in parentheses: -(-6(7r-3)+42r), so:

-6(7r-3)+42r

We add all the numbers together, and all the variables

42r-6(7r-3)

We multiply parentheses

42r-42r+18

We add all the numbers together, and all the variables

18

Back to the equation:

-(18)



We add all the numbers together, and all the variables

=0

r=0/1

r=0

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