7(-7r-2)=-7(2+3r)

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Solution for 7(-7r-2)=-7(2+3r) equation: 



7(-7r-2)=-7(2+3r)

We move all terms to the left:

7(-7r-2)-(-7(2+3r))=0

We add all the numbers together, and all the variables

7(-7r-2)-(-7(3r+2))=0

We multiply parentheses

-49r-(-7(3r+2))-14=0



We calculate terms in parentheses: -(-7(3r+2)), so:

-7(3r+2)

We multiply parentheses

-21r-14

Back to the equation:

-(-21r-14)



We get rid of parentheses

-49r+21r+14-14=0

We add all the numbers together, and all the variables

-28r=0

r=0/-28

r=0

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