4^2-21x=18

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Solution for 4^2-21x=18 equation: 



4^2-21x=18

We move all terms to the left:

4^2-21x-(18)=0

determiningTheFunctionDomain
-21x-18+4^2=0

We add all the numbers together, and all the variables

-21x-2=0

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

-21x=2

x=2/-21

x=-2/21

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