What does a plus 6a plus an equal?

Answer 1

It seems like the question is incomplete, but assuming you meant to ask "What does 6a plus a equal?" In that case, the answer would be 7a, as you are combining like terms by adding the coefficients of the variables. The expression simplifies to 7a because 6a + a = 7a.

Answer 2

a+6a+a=8a