Question

The sum of two numbers is 21 and their diffrence is 7

Answer 1

Answer:

Check the answer

Step-by-step explanation:

let's take x & y is two no.

x+y=21

x-y=7

solve this,

2x=28

x=14

so x = 14, y=7

Answer 2

Answer:

14 and  7

Step-by-step explanation:

x + y = 21

x - y = 7

y = 21 - x

x - (21-x) = 7

x - 21 + x = 7

2x = 28

x = 14

14 + y = 21

y = 7

Hence, the numbers are  

14 and  7