kylieweeks052704 kylieweeks052704
  • 03-02-2019
  • Mathematics
contestada

x + y = 5 ; x - y =3 solve using linear combination

Respuesta :

brasbo23
brasbo23 brasbo23
  • 03-02-2019

Answer:

x = 4

y = 1

Step-by-step explanation:

use one equation to solve for one variable.

y = 5 - x

Now plug the value of y in the other equation

x - (5-x) = 3

x+x= 3+5

2x=8

x=4

Now use the value of x to find the value of y on the first equation

y = 5 - x

y = 5 - 4

y = 1


Answer Link

Otras preguntas

8 + |x -2| = 8|x + 1| +5 = 24|x - 3|= -163|x +10| = 0
Simplify the following expression. 3y – 2x + z – 2x + 3(x + y) a. –x + 4y + z b. –x + 6y + z c. x + 4y + z d. 3x + 4y + z
I need help with this math problem
A math problem 27 pages in 20 seconds
what comes 10,000 before and 10,000 after this number 52,812?
1. Choose the biconditional that is equivalent to the definition, "A skyscraper is a very tall building." A. A building is a skyscraper if and only if it is v
plz help me do the question
Which best describes Richard Nixon’s first term as president?
a molecule of ozone gas has has three atoms of oxygen . witch of these describes ozone most specifically?
what is triple the sum of 24 and 9