12+5x=18+3x=3x

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Solution for 12+5x=18+3x=3x equation: 



12+5x=18+3x=3x

We move all terms to the left:

12+5x-(18+3x)=0

We add all the numbers together, and all the variables

5x-(3x+18)+12=0

We get rid of parentheses

5x-3x-18+12=0

We add all the numbers together, and all the variables

2x-6=0

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

2x=6

x=6/2

x=3

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