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

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



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

We move all terms to the left:

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

We add all the numbers together, and all the variables

3(4x+9)-(12x+27)=0

We multiply parentheses

12x-(12x+27)+27=0

We get rid of parentheses

12x-12x-27+27=0

We add all the numbers together, and all the variables

=0

x=0/1

x=0

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