18+3x=72+x

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Solution for 18+3x=72+x equation: 



18+3x=72+x

We move all terms to the left:

18+3x-(72+x)=0

We add all the numbers together, and all the variables

3x-(x+72)+18=0

We get rid of parentheses

3x-x-72+18=0

We add all the numbers together, and all the variables

2x-54=0

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

2x=54

x=54/2

x=27

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