Question

Sarthak's age=x
Sakshi's age=y

4 years ago Sakshi's age was 3 years less than Sarthak's age at that time.

Frame linear equation.

Answer 1

4 years ago,
Sarthak's age = x-4
Sakshi's age = y-4
According to question-
(x-4)-3 = (y-4)
x-4-3 = y-4
x-7 = y-4
it's the equation...
hope it helps