12x+3=3(5x+9)

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Solution for 12x+3=3(5x+9) equation: 



12x+3=3(5x+9)

We move all terms to the left:

12x+3-(3(5x+9))=0



We calculate terms in parentheses: -(3(5x+9)), so:

3(5x+9)

We multiply parentheses

15x+27

Back to the equation:

-(15x+27)



We get rid of parentheses

12x-15x-27+3=0

We add all the numbers together, and all the variables

-3x-24=0

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

-3x=24

x=24/-3

x=-8

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