Question

Laura is x years old. Robert is 2 years younger than Laura and Kyleigh is 8 years older than Robert. Which of the following expressions represents the sum of their ages in terms of x?

Answer 1

`3x+4`

Explanation:

As Laura is `x` years old and Robert is `2` years younger then Laura , he is `x-2` years old.

As Kyleigh is `8` years older than Robert, his age is `x-2+8=x+6` years.

Hence, the expressions that represents the sum of their ages in terms of `x` would be

`x+x-2+x+6`

= `3x+4`