lizacosta lizacosta
  • 23-03-2017
  • Mathematics
contestada

2x + 5y = 11
-3x+8y=-1

Respuesta :

texaschic101
texaschic101 texaschic101
  • 23-03-2017
2x + 5y = 11.....multiply by 3
-3x + 8y = -1....multiply by 2
-----------------
6x + 15y = 33 (result of multiplying by 3)
-6x + 16y = -2 (result of multiplying by -2)
-----------------add
31y = 31
y = 31/31
y = 1

2x + 5y = 11
2x + 5(1) = 11
2x + 5 = 11
2x = 11 - 5
2x = 6
x = 6/2
x = 3

solution is (3,1)
Answer Link

Otras preguntas

Which of the following statements best describes chemical weathering? A. It happens only in cool environments. B. It's the type of weathering in which rocks a
What was Polk's plan for the conduct of the war?
Describe FOUR factors that may have an influence on the effectiveness of an antimicrobial treatment using various microbial control methods.
information about Apollo
Explain the expanded role of advertising and consumer credit. Why can it be said that the prosperity of the 1950s and 1960s was substantially consumer-driven?
How many drinks must a boy drink in an hour to be considered "binge drinking"
what can cause my period to come every month
How do you answer this question?Is My answer,94 correct?
21. Which oi the following is something that all living organisms have in common
What economic challenges did Ford face? How did he respond?