168=-6(7r-7)

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Solution for 168=-6(7r-7) equation: 



168=-6(7r-7)

We move all terms to the left:

168-(-6(7r-7))=0



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

-6(7r-7)

We multiply parentheses

-42r+42

Back to the equation:

-(-42r+42)



We get rid of parentheses

42r-42+168=0

We add all the numbers together, and all the variables

42r+126=0

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

42r=-126

r=-126/42

r=-3

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