Question

4. The sum of two numbers is 28 and their difference is 6. Find each of the numbers

Answer 1

Answer: 11, 17

Explanation:

x + y = 28.........(1)

x = 28-y

x - y = 6..... . (2)

Substituting in (2)

28-y - y = 6

28 - 2y = 6

28-6 = 2y

y = 22/2 = 11

x = 28-y

x = 28 - 11 = 17