-3(7x+7)=-21x+21

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Solution for -3(7x+7)=-21x+21 equation: 



-3(7x+7)=-21x+21

We move all terms to the left:

-3(7x+7)-(-21x+21)=0

We multiply parentheses

-21x-(-21x+21)-21=0

We get rid of parentheses

-21x+21x-21-21=0

We add all the numbers together, and all the variables

-42!=0

There is no solution for this equation

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