54=3x+12

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Solution for 54=3x+12 equation: 



54=3x+12

We move all terms to the left:

54-(3x+12)=0

We get rid of parentheses

-3x-12+54=0

We add all the numbers together, and all the variables

-3x+42=0

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

-3x=-42

x=-42/-3

x=+14

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