3x+18/2=21

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Solution for 3x+18/2=21 equation: 



3x+18/2=21

We move all terms to the left:

3x+18/2-(21)=0

determiningTheFunctionDomain
3x-21+18/2=0

We add all the numbers together, and all the variables

3x-12=0

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

3x=12

x=12/3

x=4

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