-3x-+6=21

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Solution for -3x-+6=21 equation: 



-3x-+6=21

We move all terms to the left:

-3x-+6-(21)=0

determiningTheFunctionDomain
-3x+6-21-=0

We add all the numbers together, and all the variables

-3x=0

x=0/-3

x=0

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