malakhezam malakhezam
  • 17-01-2021
  • Mathematics
contestada

2x+-2y=14
x+4y=13
Elimination Method to Solve Linear Equations

Respuesta :

nicole32406 nicole32406
  • 17-01-2021

Answer:

(41/5, 6/5)

Step-by-step explanation:

2x+-2y=14

x+4y=13

You can multiply the first equation by 2 so you can eliminate the y:

2(2x+-2y=14)

4x+-4y=28

Then you can set up both equations to be added together:

 4x+-4y=28

+ x+4y=13    

5x=41

x=41/5

Then you can substitute 41/5 for x in the original equation:

x+4y=13

41/5+4y=13

5(41/5+4y)=5(13)

41+20y=65

20y=24

y=24/20

y=6/5

Check:

2x+-2y=14

2(41/5)+-2(6/5)=14

82/5+-12/5=14

70/5=14

14=14

Answer Link

Otras preguntas

What does the narrator think would happen if he killed Torres ?
plz Help your fav. Marshmello i wasn' t,,,,, xx born yesterday.
Any correct answers would be super helpful!
What is the condensed formula for 2-pentyne??
A binomial probability experiment is conducted with given parameters. Compute the probability of x successes in the n independent trials of the experiment. N=1
What is the square root of 300
f-Block elements are also called inner-transitional elements? give reason.​
What is Robert afraid the vampires will destroy in Part 1, Chapter 5? Why is it important to his survival?
What started the conflict between France and England in North America? *
Which statements about the characteristics of moles are true