mm0nroe1 mm0nroe1
  • 23-10-2018
  • Mathematics
contestada

3x+4y=8, 7x-8y=-69 elimination

Respuesta :

OmegaAzzy
OmegaAzzy OmegaAzzy
  • 25-10-2018

The value of x is equal to -4.076

The value of y is equal to 5.057

3x + 4y = 8

7x - 8y = -69

To make this easier, we can multiply each term in the first equation by 2.

6x + 8y = 16

Now, we can use elimination to isolate one variable.

Combine equations.

13x = -53

Divide both sides by 13.

x = -4.076

We can plug this value of x into the equation to find the value of y.

3(-4.076) + 4y = 8

-12.228 + 4y = 8

Add 12.228 to both sides.

4y = 20.228

Divide both sides by 4.

y = 5.057





Answer Link

Otras preguntas

Can somebody give me some information on Gilda Baron please? It is really important.
what fraction is equivalent to 1/3
What is the meaning of bathymetry
What is the average of the following numbers: 3.2, 47/12,10/3?
If the ratio of the area of circle A to the area of circle B is 2 : 1, then how many times larger is the circumference of circle A than the circumference of cir
In the mid 1800s, much of the South remained agricultural rather then moving toward manufacturing. Many farmers relied on cotton as their main crop. Which of th
what comes next 1,2,6,14,....
How did the achievements of the Scientific Revolution contribute to the Enlightenment ?
How did the achievements of the Scientific Revolution contribute to the Enlightenment ?
How did the achievements of the Scientific Revolution contribute to the Enlightenment ?