What is the answer to 13 plus 13x?

Answer 1

We don't know what the question is. (13 + 13x) isn't an equation, so it doesn't

imply a question, and doesn't need a solution. It's an "expression", and its value

(the number it's equal to) depends on what 'x' is at the moment.

Maybe you got this as a homework question, and the assignment was: "Factor this expression."

If that's the question, then here's the factored form:

(13 + 13x) = 13 (1 + x) .

It's important to understand that this isn't the 'answer' to anything.

It's just a different way to write the same expression.