-2r-(r+7)=-2r-6(6r+7)

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Solution for -2r-(r+7)=-2r-6(6r+7) equation: 



-2r-(r+7)=-2r-6(6r+7)

We move all terms to the left:

-2r-(r+7)-(-2r-6(6r+7))=0

We get rid of parentheses

-2r-r-(-2r-6(6r+7))-7=0



We calculate terms in parentheses: -(-2r-6(6r+7)), so:

-2r-6(6r+7)

We multiply parentheses

-2r-36r-42

We add all the numbers together, and all the variables

-38r-42

Back to the equation:

-(-38r-42)



We add all the numbers together, and all the variables

-3r-(-38r-42)-7=0

We get rid of parentheses

-3r+38r+42-7=0

We add all the numbers together, and all the variables

35r+35=0

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

35r=-35

r=-35/35

r=-1

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