bignyeia bignyeia
  • 11-09-2020
  • Mathematics
contestada

-5x - 2y = 13
-4x + y = 0
Solve by substation

Respuesta :

felicityt026
felicityt026 felicityt026
  • 11-09-2020

Answer:

(x,y)=(-1,-4)

Step-by-step explanation:

-4x + y = 0

+4x         +4x

y=4x

-5x - 2y = 13

+5x          +5x

-2y = 5x+13

-2(4x) = 5x+13

-8x=5x+13

-5x -5x

-13x/-13=13/-13

x=-1

Thus:

y=4x

y=4(-1)

y=-4

Answer Link

Otras preguntas

How many miles is Russia from east to west?
Directions: Drag each tile to the correct box. Order the following conditions in order from the largest number of possible triangles to the least number of p
What is situational irony
Francisco "Pancho" Villa and Emiliano Zapata were heavily involved in the Mexican Revolution because they were fighting for the Mexican dictatorship to remain i
How many miles is Russia from east to west?
in the southern campaign launched by British Cornwallis lost a battle with the Americans under Nathaniel Greene at?
Which answer choice does not contain any punctuation errors? A. "They are typically fashionable in Europe." she remarked. B. "Shepherds shear wool" Tim a
62 is 90.5% of what number
What is the awnser to 12+5x=72
valerie purchased x tubes of lipstick at $4 each and y bottles of nail polish at $2 each. she spents less than $12 not including tax. which point represents a