sydnneeyyyyy sydnneeyyyyy
  • 22-02-2017
  • Mathematics
contestada

Use elimination to solve the system of equations. Enter your answer as an ordered pair; example: (10, -25)

2x - 5y = -5
-2x + 8y = -58

Respuesta :

texaschic101
texaschic101 texaschic101
  • 27-02-2017
2x - 5y = -5
-2x + 8y = -58
-------------------add
3y = - 63
y = -63/3
y = - 21

2x - 5y = -5
2x - 5(-21) = -5
2x + 105 = -5
2x = -5 - 105
2x = -110
x = -110/2
x = - 55

solution is (-21, -55)
Answer Link

Otras preguntas

When [OH⁻] changes from 10-9to 10-11in a solution: Kw = [H+][OH-] What happens to [H+]?
HELP PLS I NEED THIS QUICK! Imagine that you are completing a research paper for your course, and be able to effectively plan a course of action to submit an A
describe how caffeine can affect your stress level
What is true about Macbeth's second encounter with the witches? A. The witches are not really there;he is hallucinating B. Macbeth participates in the casting
15 POINTS TO THE BRAINIEST ANSWER! :)An author claims that "zoos do more good than harm." The author provides the following as support for the claim: According
What must occur before mitosis takes place?
Which of the following describes a key difference between the League of Nations and the United Nations
how much seconds are in a school year. ??
Which law or policy provides specific guidance for Department of Defense acquisition Workforce in reference to ctip
Help me on number two please