Question

13. The difference of two numbers
is 4 and their sum is 20. What will
be its linear equation?​

Answer 1

x - y = 4

x + y = 20

--------------

2x = 24

x = 12

Answer 2

Step-by-step explanation:

suppose x and y are two numbers .

The sum of the two numbers is 20 .

x + y = 20................( 1 )

And their difference is 4

x - y = 4....................( 2 )

x + y = 20 , x - y = 4

x + y = 20 - 4

4y + y = 16

y = 16/2 = 8

x = 8 - 20 = 12

By solving above equation we get

x = 12, y = 8

greater number is 12