-6x-21=-3(6+2x)

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Solution for -6x-21=-3(6+2x) equation: 



-6x-21=-3(6+2x)

We move all terms to the left:

-6x-21-(-3(6+2x))=0

We add all the numbers together, and all the variables

-6x-(-3(2x+6))-21=0



We calculate terms in parentheses: -(-3(2x+6)), so:

-3(2x+6)

We multiply parentheses

-6x-18

Back to the equation:

-(-6x-18)



We get rid of parentheses

-6x+6x+18-21=0

We add all the numbers together, and all the variables

-3!=0

There is no solution for this equation

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