madisonmccarty madisonmccarty

19-12-2019
Mathematics

contestada

X+7y =-5
-x+y=-3
Solve the system of linear equations

Respuesta :

Stefanisaska Stefanisaska

19-12-2019

Answer:

x=2

y=-1

Step-by-step explanation:

x+7y=-5

+║

-x+y=-3

---------------------------------

8*y=-8

y=-8/8

y=-1

-x-1=-3

-x=-3+1

-x=-2

x=2

Answer Link

Otras preguntas

x/3 = 15 solve for x

What percentage of the human population lived in cities 100 years ago?

What is the circumference of the circle? (use 3.14 for pi) 28.26 km 56.52 km 56.55 km 113.04 km

Dissolve substances in water is: A) physical process B) chemical process

1. An AP Statistics class starts a project to estimate the average number of hours a student at their high school sleeps per night. Their high school has 1200 s

The density for potassium is 0.856 g/cm3. What would be the mass of a 40 cm3 piece of potassium? A. 68.48g B. 46.73g C. 34.24g D. 34g

In what order should you present these ideas to show what Ellis Island was like for immigrants? Mark the first event you would discuss with the number 1. Each i

A zygote is formed during a process called. A. fertilization. В. meiosis. C. mitosis. D. diploid.

5. 54 J of heat is required to raise the temperature of a 2.47g unknown substance from 17.10C to 46.70C. a) Calculate the specific heat of the substance b)

Which of these was a lasting effect of the stock market crash? O A. The market recovered quickly. B. The country entered a depression. C. The cost of living wen