12x=54+3x

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Solution for 12x=54+3x equation: 



12x=54+3x

We move all terms to the left:

12x-(54+3x)=0

We add all the numbers together, and all the variables

12x-(3x+54)=0

We get rid of parentheses

12x-3x-54=0

We add all the numbers together, and all the variables

9x-54=0

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

9x=54

x=54/9

x=6

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