NCERT Example 5 - Pair of Linear Equations in Two Variables
Question: Solve the following question— Aftab tells his daughter, “Seven years ago, I was seven times as old as you were then. Also, three years from now, I shall be three times as old as you will be.” Represent this situation algebraically and graphically by the method of substitution.
Answer: Aftab's present age is 42 years, and his daughter's age is 12 years.
Full step-by-step NCERT solution with diagrams on Something by Zero.