3x+12=3(+)

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



3x+12=3(+)

We move all terms to the left:

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

We add all the numbers together, and all the variables

3x+12-(30)=0

We add all the numbers together, and all the variables

3x-18=0

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

3x=18

x=18/3

x=6

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