aler1111 aler1111

06-06-2019
Mathematics

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2. Write a system of equations and solve.
The difference of two numbers is 5. Their sum is 23. What are the two numbers?
Pls explain answer

Respuesta :

luqa151p0godw luqa151p0godw

06-06-2019

Answer:

x - y = 5

x + y = 23

x = 14, y = 9

Step-by-step explanation:

Make x subject:

x = 5 + y

Substitute c by (5 + y) :

( 5 + y) + y = 23

2y = 18

y = 9

Substitute y (9):

x = 5 + 9

x = 14

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