janaewillis78 janaewillis78
  • 17-03-2020
  • Mathematics
contestada

Select all the statements that correctly describe the solutions to this system of equations?
2x-y= 0
x+y=9

Respuesta :

hanifchoirunnisa
hanifchoirunnisa hanifchoirunnisa
  • 17-03-2020

x + y = 9

x = 9 - y

2x - y = 0

2(9 - y) - y = 0

18 - 2y - y = 0

-3y = -18

y = 6

x = 9 - y

x = 9 - 6

x = 3

Answer Link

Otras preguntas

the value of 7856 would change by how much if the 8 were replaced by 5
Which expresses 6y : 9y in its simplest form? A. 9 : 6 B. 2 : 3 C. 6 : 9 D. 3 : 2
According to Darwin which of the following creatures would be most likely to survive
Find S11 for 3 + 1 + (-1) + (-3) +… A. -77 B. -75 C. -73 D. -71
Classify the solid. A. tetrahedron B. dodecahedron C. octahedron D. icosahedron
If the width and height of a rectangular prism are each shrunk to one seventh of the original size but the length remains the same, what is the formula to find
pleaseeeee helppp!!!!!!!!!!!
When unions were first organized, union leaders did what?
pleaseeeee helppp!!!!!!!!!!!
what is relationship between the 3s in the number 9338