Question

(2) The sum of two natural numbers is 20 while their difference is 4. Find

the numbers.​

Answer 1

Say the first number is x, while the second one is y.

x + y = 20; x - y = 4.

This is an example of a set of system of equations. And you can easily solve it by incorporating a tactic called linear combination.

Simply add the two equations together to find:

2x = 24 → x = 12.

Since you have one value, easily find y by plugging the value of x back into any one of the two equations.

12 + y = 20 → y = 8. Thus the two numbers are 12 and 8.

Answer 2

therefore the answer the natural numbers are 12 and 8 respectively