spiritnevland spiritnevland
  • 03-01-2021
  • Mathematics
contestada

Solve the following system of equations:
-2x + y = 1
-4x + y = -1

A: (3, 1)
B: (-1, 3)
C: (-1, -3)
D: (1, 3)

Respuesta :

Eddie1Wan
Eddie1Wan Eddie1Wan
  • 03-01-2021

Answer:

x=1,y=3

correct answer is (1,3)

Step-by-step explanation:

We can quickly eliminate y by subtracting one equation from the other

(-2x+y=1)-(-4x+y=-1)

2x=2

x=1

plug x=1 into equation 1

-2(1)+y=1

y=1+2=3

Answer Link

Otras preguntas

What is the unit rate for 822.6 km in 18 hours? Enter your answer, as a decimal, in the box. Please Help
This type of art is when the artist renders objects or person are in geometric forms. it looks like overlapping planes of shapes.
Which best corrects the Clause fragment? The boy has on a cowboy shirt. That is covered with mud.
how do i use doubles to solve
_____ data technology involves using a database to store and access data according to the locations
Help!!!!!me plz I wasn’t here
Using a dictionary look up and then list four definitions of the word nice that you would use in a paragraph to develop this topic sentence: "The word nice is
This is not a part of the peripheral nervous system:
Why does settlement settle to the ocean floor?
"euthanasia" derives from the greek word for "sad or unhappy death"?