3+21=-3(8x-8)

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Solution for 3+21=-3(8x-8) equation: 



3+21=-3(8x-8)

We move all terms to the left:

3+21-(-3(8x-8))=0

We add all the numbers together, and all the variables

-(-3(8x-8))+24=0



We calculate terms in parentheses: -(-3(8x-8)), so:

-3(8x-8)

We multiply parentheses

-24x+24

Back to the equation:

-(-24x+24)



We get rid of parentheses

24x-24+24=0

We add all the numbers together, and all the variables

24x=0

x=0/24

x=0

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