7(-7r-7)=-7(7r+7)

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



7(-7r-7)=-7(7r+7)

We move all terms to the left:

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

We multiply parentheses

-49r-(-7(7r+7))-49=0



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

-7(7r+7)

We multiply parentheses

-49r-49

Back to the equation:

-(-49r-49)



We get rid of parentheses

-49r+49r+49-49=0

We add all the numbers together, and all the variables

=0

r=0/1

r=0

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