For what values of the variable are the following expressions defined?

7a/3+a

The equation is given below
Please Help, include an explanation, and a equation/answer that can be entered on learning websites to answer the question

The Expression will be defined if the denominator is not equal to 0 since any number divided by 0 is undefined.
Therfore our main priority here is to check the denominator only because it's the only part that can make the expression undefined
the expression will be defined for all real numbers (a) BUT 3+a must not equal to 0 therfore (a) can be all real numbers but must never be equal to -3

Step-by-step explanation:

[tex]a \: is \: an \: element \: of \: all \: real \: numbers \: but \: not \: not \: equal \: to \: -3[/tex]
HOPE THIS HELPS!

For what values of the variable are the following expressions defined? 7a/3+a **The equation is given below** **Please Help, include an explanation, and a equation/answer that can be entered on learning websites to answer the question**