Question

My friend is 4 years older than me. The sum of our ages is 24 . How old am I?

Answer 1

Suppose I am $x$ years old and so my friend is $x-4$ years old. Then $x+(x-4)=24 \Longrightarrow 2 x-4=24 \Longrightarrow$ $2 x=24+4=28 \therefore x=28 \div 2=14$.

Answer 2

Answer is 10

In order to solve the question, we need to create an equation as this is a word problem.

The person age is $x$

The friend is $x+4$

Sum of is plus therefor:

$x+x+4=24$

$2x+4=24$

$2x=24-4$

$2x=20$

$x=20/2$

$x=10$