12(2x+2)=21(x+3)

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Solution for 12(2x+2)=21(x+3) equation: 



12(2x+2)=21(x+3)

We move all terms to the left:

12(2x+2)-(21(x+3))=0

We multiply parentheses

24x-(21(x+3))+24=0



We calculate terms in parentheses: -(21(x+3)), so:

21(x+3)

We multiply parentheses

21x+63

Back to the equation:

-(21x+63)



We get rid of parentheses

24x-21x-63+24=0

We add all the numbers together, and all the variables

3x-39=0

We move all terms containing x to the left, all other terms to the right

3x=39

x=39/3

x=13

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