Respuesta :

Answer:

13.5 and 7

Step-by-step explanation:

x + y = 20.5

x - y = 6.5

Hence,

x = 20.5 - y

20.5 - 2y = 6.5

Hence,

2y = 14

y = 7

and x = 20.5 - y = 20.5 - 7 = 13.5

The two numbers are are 13.5 and 7.

What linear equations represents the numbers?

a + b = 20.5 equation 1

a  - b = 6.5 equation 2

Where a and b represents the two numbers

What is the value of b?

In order to determine the value of b, subtract equation 2 from 1

2b = 14

Divide both sides by 2

b = 7

What is the value of a?

Substitute for b in equation 1

a + 7 = 20.5

a = 20.5 - 7

a = 13.5

To learn more about simultaneous equations, please check: https://brainly.com/question/25875552

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