Question

5 years ago nuri was twice as old as sonu represent the situation in two variable

Answer 1

let x be sonu age .

so Nuri is 5 years old

5x+x = x

5×2x = x

10x=x

Answer 2

Answer:

Situation is represented as a - 2b = - 5, where a represents the present age of Nuri and b represents the present age of Sonu.

Step-by-step explanation:

Let,

Present age of Nuri is a years.

Present age of Sonu is b years.

According to the question :

= > Age of Nuri before 5 years = twice of age of sonu before 5 years

= > Present age of Nuri - 5 years = 2 x ( Present age of Sonu - 5 years )

= > ( a years - 5 years ) = 2( b years - 5 years )

= > ( a - 5 ) years = 2( b - 5 ) years

= > a - 5 = 2( b - 5 )

= > a - 5 = 2b - 10

= > a - 2b - 5 + 10 = 0

= > a - 2b + 5 = 0

= > a - 2b = - 5

Given situation is represented as a - 2b = - 5, where a represents the present age of Nuri and b represents the present age of Sonu.