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

0.18 divided by 0.7884 show work
Approximately how much of the Ottoman Empire was lost by 1914?
What is the maximum slope to f(x)= e^(-x^2)? (What's max. slope?) a. (sqrt2)/2 b. -(sqrt2)/2 c. -sqrt(2/e) d. sqrt(2/e)?
Please need this question answered asap
solve the equation algebraicly for the exact vaule of x CHECK YOUR WORK : THE equation IS 6 - 2/4 (x + 5) = 4x
Hey so, I was looking online how to reset my laptop and I ended up pressing load setup defaults and now I get an error saying checking media fail. Also I am not
what is " ( ) " called?
What process is shown in the diagram below? 1Points A drawing showing chromatids. Each member of the pair has a piece of the other one attached to it. A mitosi
Describe the colossal head that was built by the Olmec and why they were built.
click on the picture thanks so much