makadz3542 makadz3542
  • 19-01-2021
  • Mathematics
contestada

Solve the system of linear equations by substitution x-y=-4 2x+y=4

Respuesta :

almatheia almatheia
  • 19-01-2021

Answer:

Given:

x-y=-4

2x+y=4

Step-by-step explanation:

x-y=-4

2x+y=4

add both the equation, we get

⇒  x-y=-4

  2x+y=4

⇒3x=-4+4

⇒3x=0

⇒x=0

∴ to find the value of y, put the value of x in any one equation

⇒x-y=-4

⇒0-y=-4

⇒-y=-4

⇒y=4

∴ x=0, y=4

Answer Link

Otras preguntas

Marking Brainliest, help me
word equation for aluminium and nitric acid reaction.
Solve 3(2-1) This is math
66 2/3 % of 12. ANSWER AND EXPLAIN WITH FURTHER AND CLEAR DETAILS
The curve produced by the water coming from a hose is sketched onto a graph with zeros at 0 and 5. The point (4, 1) also lies on the curve. If h(x) represents t
In Chapter 4 of The Great Gatsby, Jordan Baker tells Nick the story of how Gatsby and Daisy met and what happened afterward. How does this flashback contribute
P=3.20(g−1,250)P, equals, 3, point, 20, left parenthesis, g, minus, 1, comma, 250, right parenthesis Elena's Dry Cleaning cleans ggg garments every month. The a
What talent and interest persisted throughout Eli Whitney's life?
Solve 2,731 + 3,471 = ________.
How did the Mongols influence history?