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

Ballads are narrative poems that were originally meant to be read silently by the audience. Question 9 options: True False
What contributed to the implementation of Jim Crow laws? -the presidential election of 1872 -passage of the Fourteenth Amendment -the end of Reconstruction -rep
What are Opposite Operations (Inverse Operations)?
What multiples to -35 but adds to 8
According to the text working class parents socialize children to
Suppose that some people report themselves as unemployed when, in fact, they are working in the underground economy. if these persons were counted as employed,
factor out the coefficient of the variable 1/4 y + 3/8
Assume you were going to teach this information to a group of seventh graders. Pick a title for your presentation that would make the seventh graders want to li
How to solve this problem. I don’t know how to do this and need help desperately
Identify at least two ways that the calorimeter could be improved?