If Ben is x years old, the expression
2x + 5
gives the sum of Ben’s and Teresa’s ages.

If Ben is 7 years old, the sum of Ben’s and Teresa’s ages is
13
years

Question

If Ben is x years old, the expression 
2x + 5
 gives the sum of Ben’s and Teresa’s ages.

If Ben is 7 years old, the sum of Ben’s and Teresa’s ages is 
13
 years

MidniteSunny · Answer

Oh okay, I see. This makes more sense.
so 2x + 15, sub in 7 for the x
2(7) + 15
14 + 15 
29

MidniteSunny · Answer

so rlly the sum of their age should be 29, yes?

ctomk3743 · Answer

Im not good at math

MidniteSunny · Answer

That's alright ! Math ish difficult, so das understandable.

ctomk3743 · Answer

Thanks you

ctomk3743 · Answer

So the answer?

MidniteSunny · Answer

If Ben is 7 years old, the sum of Ben's and Teresa's ages is 29 years old.
(Based on substituting 7 for x in the mathematical expression given)

MidniteSunny · Answer

or rather, subbing x with 7, sorry, words get confusing lol

ctomk3743 · Answer

that's ok lol