alexnmonica2006 alexnmonica2006
  • 14-11-2020
  • Mathematics
contestada

What is the y-value to the solution of y = 5x -4 and y = 2x + 8

Respuesta :

900310470
900310470 900310470
  • 14-11-2020

Answer:

At the bottom!

Step-by-step explanation:

Put the two equations into the same standard form:

2x-y=8

-5x+2y=3

Now if you add the two equations up, guess what will happen?

You will "eliminate" the y variable, and only be left with the x variable.

Technically, you will get:

2x-y+2+28-5x+29+2y=8+23

-3x+20y=11

-3x=11

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