3x-12=18-3x

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Solution for 3x-12=18-3x equation: 



3x-12=18-3x

We move all terms to the left:

3x-12-(18-3x)=0

We add all the numbers together, and all the variables

3x-(-3x+18)-12=0

We get rid of parentheses

3x+3x-18-12=0

We add all the numbers together, and all the variables

6x-30=0

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

6x=30

x=30/6

x=5

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