Question

Arnav's father is 49 year old. He is nine years older than four times Arnav's age. set up equation to find Arnav's age

Answer 1

☆Hello friend☆

As Arnav's father age is 49 years

So let's take Arnav age be x

Equation:-

49= 4x+9
49-9=4x
40=4x
40/4=x
10 years=x

$hope \: it \: helps$

☺☺☺

Answer 2

• The equation is : 4x + 9 = 49 where Arnav's age is x years

• Arnav's age = 10 years

Given :

• Arnav's father is 49 year old.

• He is nine years older than four times Arnav's age

To find :

Set up equation to find Arnav's age

Solution :

Step 1 of 2 :

Set up equation to find Arnav's age

Let Arnav's age is x years

Now it is given that Arnav's father is 49 year old.

He is nine years older than four times Arnav's age

Now , four times Arnav's age = 4x years

When 9 years is added with 4x years we get 4x + 9 years

By the given condition

$\displaystyle \sf{ }4x + 9 = 49$

Which is the equation to find Arnav's age

Step 2 of 2 :

Calculate Arnav's age

$\displaystyle \sf{ }4x + 9 = 49$

$\displaystyle \sf{ \implies 4x = 49 - 9}$

$\displaystyle \sf{ \implies 4x} = 40$

$\displaystyle \sf{ \implies x = \frac{40}{4} }$

$\displaystyle \sf{ \implies x = 10 }$

Hence Arnav's age is 10 years

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