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

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

Working With Inequalities Solve This Problem: 8 > 8n Thank you all in advance!

Which of the following is an example of due process? jailing persons without informing them of the charge following the law to charge someone with a crime pas

Theorists who would argue that the mass media represents the interests of society's political and economic elites would be most aligned with the ________ perspe

Andy buys a 75 cent juice box using only quarters and nickels. show the amount he spent in two ways.

who is Juliet supposed to marry

Density is calculated by dividing the mass of an object by its volume. Please select the best answer from the choices provided T F

can beryllium be broken down by chemical change?

U.S. president Franklin d. Roosevelt proposed a massive package of Depression relief called the Great Society. a. True b. False

Who is Gregor Mendel? What type of organism did he study? What did he learn that helped us understand genetics?

12 out of 18 students buy pizza for lunch on Fridays. At this rate if there are 240 students in the entire school, how many students can be expected to buy pizz