Question

What is the answer ?
6 + 3u =

Answer 1

We would need to determine “u”
With PEMDAS, we would multiply 3 by u, and then add six.
If there is no u, variables are always at 1 by default. If there is absolutely no u, the answer would be 9.

Answer 2

You cant add them so it is probably a trick question.

Explanation: