-12x+21=6(-2x)

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Solution for -12x+21=6(-2x) equation: 



-12x+21=6(-2x)

We move all terms to the left:

-12x+21-(6(-2x))=0



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

6(-2x)

We multiply parentheses

-12x

Back to the equation:

-(-12x)



We get rid of parentheses

-12x+12x+21=0

We add all the numbers together, and all the variables

21!=0

There is no solution for this equation

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