Question

Arnav's father is 49 years old he is nine years older than four times arnav's age set up an equation to find arnav's age

Answer 1

let arnavs age be x years
and fathers age be y years
so the equation is........
x = 9 + 4y

Answer 2

let arnav's age be x
then his father's age will be4x +9
given father's age=49 years
according to question,
4x+9=49
4x=49-9
4x=40
x=40/4
x=10
therefore, arnav's age =10 years