The ages of John and Martha together are 28 years. If John is 4 years older than Martha. What is Martha's age?

Feb 9, 2017

Let the variable x represent their respective age.

Explanation:

As John is 4 years older, that would be (4+x)

$4 + x + x = 28$

$2 x = 24$

$x = 12$

Martha is 12 and John is 16 ($12 + 4 = 16$)