3(9-x)-39=21x-6(2+4x)

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Solution for 3(9-x)-39=21x-6(2+4x) equation: 



3(9-x)-39=21x-6(2+4x)

We move all terms to the left:

3(9-x)-39-(21x-6(2+4x))=0

We add all the numbers together, and all the variables

3(-1x+9)-(21x-6(4x+2))-39=0

We multiply parentheses

-3x-(21x-6(4x+2))+27-39=0



We calculate terms in parentheses: -(21x-6(4x+2)), so:

21x-6(4x+2)

We multiply parentheses

21x-24x-12

We add all the numbers together, and all the variables

-3x-12

Back to the equation:

-(-3x-12)



We add all the numbers together, and all the variables

-3x-(-3x-12)-12=0

We get rid of parentheses

-3x+3x+12-12=0

We add all the numbers together, and all the variables

=0

x=0/1

x=0

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