Question

number x.
Rajus father's age is 45 years; which is also equal to the sum of the ages of Raju x and his sister whose
age is 12 years. Represent the given information in linear equation.​

Answer 1

Step-by-step explanation:

X + 12 = 45

x = 45 -12 = 33

rajus age = 33

Answer 2

Raju's father age is 45 years, which is also equal to sum of the ages of Raju and his sister.

$\implies\:\sf{Age\:of\:Raju's\:father\:=\:45}$

Let us assume that the age of Raju by x years and his sister be y years.

As, age of Raju and his sister is also equal to age if their father.

$\implies\:\sf{x\:+\:y\:=\:45}$

Also, given that age of Raju's sister is 12.

$\implies\:\sf{y\:=\:12}$

What we have to do is.. just simply put the value of y in above equation.

By putting value of y in above equation, we can tell the actual age of Raju.

According to question,

$\longrightarrow\:\sf{x\:+\:12\:=\:45}$

Take 12 on L.H.S. By taking it L.H.S. it become -12

$\longrightarrow\:\sf{x\:=\:45\:-\:12}$

$\longrightarrow\:\sf{x\:=\:33}$

Therefore, Age of Raju is 33 years.

But according to question we have to represent the given information in linear equation.

So, linear equation is x + y = 45