Question

The sum of two number is 64 and the difference is 16. What are the numbers?

Answer 1

24 and 40

Explanation:

x + y = 64

x - y = 16

x = y + 16

2y = 64 - 16

2y = 48

y = 24

________________

64 - 24 = 40

x = 40

Answer 2

The numbers are 40 & 24

Explanation:

Let the two numbers be x and y.

x+y=64-----(1)

x - y=16----(2)

eq(1)+(2)=> 2x=80

......................x=40

Substitute x=40 in eq(1)

..............40+y=64

..............y=64-40=24