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

Evaluating quadratic functions using
can you guys help me with this im not that good with math thanks i need the answer tonight
The city located in Tennessee along the Mississippi river
What was Bush’s political philosophy
4 = 2/3 ( x + - 12 )
Are these lines an example of end stop or caesura?
An opera singer in a convertible sings a note at 700 hz while cruising down the highway at 83 km/h . the speed of sound in the air is 343 m/s. part a what is th
Butane (c4 h10(g), hf = –125.6 kj/mol) reacts with oxygen to produce carbon dioxide (co2 , hf = –393.5 kj/mol ) and water (h2 o, hf = –241.82 kj/mol) according
Identify and explain Joseph Conrad's formal or informal writing in this passage from The Heart of Darkness, citing specific examples from the text. "I shook han
A pair of sneakers is regularly at $ 52. It is on sale for 15% off of the regular price, what is the sale price of the sneakers?