Sophinacons6hieFur Sophinacons6hieFur
  • 01-12-2016
  • Mathematics
contestada

Which ordered pair is the solution to the system of equations?

{2x+y=−8
{x−y=−4

(1, 5)
(−3, −2)
(−4, 0)
(−1, 3)

Respuesta :

wizard123
wizard123 wizard123
  • 01-12-2016
Lets solve this with elimination.
Add both equations together, you will notice the y terms cancel each other out because "y-y = 0". This is what we want.

The result is:
[tex]3x = -12[/tex]
Divide both sides by 3
[tex]x = -4[/tex]

To find y-value, plug in x=-4 into 1st equation:
[tex]2(-4) +y = -8[/tex]
-8 +y = -8
y = 0

Solution is  (-4,0)
Answer Link

Otras preguntas

why did the north industrialize faster than the south
What was a major concern for the Founding Fathers of the United States? a. government that was fair to the people b. acquiring land for settlement c. establi
What does the abbreviation misc. Stand for?
Who made the game named soccer
The key step in sweating that promotes cooling is the condensation of fluids on the skin. a. True b. False
Solve the equation for y (Y-3)^2=4y-12
All of the following were strategies used in Vietnam by the United States EXCEPT: a. a military invasion of North Vietnam c. search and destroy missions b. a
someone has $3678 he gives his brother $1234 how many does the other guy have?
Which additional word in the sentence should be capitalized? Can you help me, officer, to find my lost dog? A. Officer B. Help C. Dog D. Lost
Who is the most powerful member of the House of Representatives? A. The President of the House B. The House Whip C. The Speaker of the House D. The Majority Par