8r-40=6(7r-1)

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Solution for 8r-40=6(7r-1) equation: 



8r-40=6(7r-1)

We move all terms to the left:

8r-40-(6(7r-1))=0



We calculate terms in parentheses: -(6(7r-1)), so:

6(7r-1)

We multiply parentheses

42r-6

Back to the equation:

-(42r-6)



We get rid of parentheses

8r-42r+6-40=0

We add all the numbers together, and all the variables

-34r-34=0

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

-34r=34

r=34/-34

r=-1

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