giasol04 giasol04
  • 04-04-2019
  • Mathematics
contestada

What is the value of the y coordinate of the solution to the systems of equations x+2y=9 and x-y=3

Respuesta :

znk
znk znk
  • 04-04-2019

Answer:

y = 2

Step-by-step explanation:

(1) x  + 2y = 9

(2) x  -   y = 3

Subtract (2) from (1)

3y = 6

 y = 2

The y-coordinate is y = 2.

The graphs of the two equations intersect at (5, 2).

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