garrett8552 garrett8552
  • 03-12-2020
  • Mathematics
contestada

69,5)
)
Solve each system of equations by elimination
9. x + y = -5
x - y = 9

Respuesta :

oscar236
oscar236 oscar236
  • 03-12-2020

Answer:

(2, -7).

Step-by-step explanation:

x + y = -5

 x - y = 9           Adding, to eliminate y:

2x = 4

x = 2

Plug this into first equation:

2 + y = -5

y = -5 - 2

y = -7.

Answer Link

Otras preguntas

Which leader was an influential Republican president during the Civil War who signed the document to end slavery in the US? a. Abraham Lincoln b. Ulysses S. G
Which congressional chamber has the power to override a presidential veto?
We can determine the __________ of a wave when given the frequency and the wavelength. (2 points) A) amplitude B) velocity C) equilibrium D) crest
The excretory organs found in flatworms and earthworms are called _____. kidneys Malpighian tubules nephridia nephrons
Which equation is equivalent to 3[x + 3(4x – 5)] = 15x – 24?
Identify the sentence type. Nathan, who never does anything wrong, did something wrong.
Today’s electric generators work on the same principle as the dynamo invented by A. Thomas Edison. B. Benjamin Franklin. C. Michael Faraday. D. Guglielmo Mar
Communication is the process of transmitting information from one person or place to another. a. True b. False
whats1:1/4 plus 2/3/4
Tapeworms can reproduce by _____. budding fission fragmentation