desireab
desireab desireab
  • 22-09-2019
  • Mathematics
contestada

Solve the system for x:
6x - 5y = 8
2x + 9y = 24

Respuesta :

iwillrektyou
iwillrektyou iwillrektyou
  • 22-09-2019

Answer:

x = 3

Step-by-step explanation:

[tex]\left \{ {{6x-5y=8} \atop {2x+9y=24}} \right.[/tex]

I'm going to use the method of elimination by multiplying the second equation by -3:

[tex]\left \{ {{6x-5y=8} \atop {-6x-27y=-72}} \right.[/tex]

Then I can eliminate x:

-32y = -64

To solve for y, I'd simply divide:

y = 2

Because I now have y = 2, I'll just plug in 2:

6x - 5(2) = 8

6x - 10 = 8

6x = 18

x = 3

Hopefully I helped :)

Answer Link

Otras preguntas

What is Jimmie Davis' second term as governor notable for? fromK12
The woman's rights movement is now more strongly organized and has penetrated the society. There are many causes for this: women's greater freedom of activ
What was the most important feature that shaped the era of new imperialism but not the era of old imperialism
What is one important element in the design of a technical document
Determine in which quadrant the product of cos 3pi/4 + isin 3pi/4 and 4(cos pi/2 + isin pi/2) lies.
And what challenges did they face both internally and externally in the Abolitionist Movement?
___is the main energy source for all life on earth
advantages of maps over aerials photographs as a way of understanding Earth's surface? a. there is too much distortion in photograph. b. maps show more features
Africa’s largest mountain, __________, is located in eastern Africa.
HELP PLEASE HELP SOMEONE PLEASE HELP ASAP