# 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?

Oct 31, 2016

$3 x + 4$

#### 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

$x + x - 2 + x + 6$

= $3 x + 4$