Question

Gregory(g) is 20 years older than his cousin Mark(m). Mark is 6 years younger than his

sister Louanne(L). Write an expression to represent the sum of their ages.

Answer 1

Explanation:

Let's make Mark x as he is in both equations.

For Gregory in Marks view = x+20

For Marks's sister Louanne = x-6

Now you just add everything!

> x+x+20+x-6

> 3x+14

The sum of their ages is 3x+14

Hope that helped!