Word Problem -- thanks for looking/helping!

Here's a word problem I want verification that I'm "getting it"

Let me know the steps involved

In 24 years, Herbert's age in years will be twice Jack's age in years.

is A>B B>A or A=B?

A: Jack's age now if Herbert is 34

B: 10

Here's what I was thinking:

Is the algebra herbert’s age in 24 yrs equals twice jacks age in 24 years?

H + 24 = 2 (J + 24) which incidentally turns out to be

H + 24 = 2J herberts age in 24 years is twice jacks age (now) weird!

If J was 10, then herberts age would be negative… by this eqn.

And if H = 34, then J = 29.

I donno, what do you think ?