jamheraldov95tb jamheraldov95tb
  • 17-11-2019
  • Mathematics
contestada

Use elimination to solve the system of equations

Use elimination to solve the system of equations class=

Respuesta :

LPanda4 LPanda4
  • 17-11-2019

Answer:

A (-5,2)

Step-by-step explanation:

5x+y=-23

7x-3y=-41

3×(5x+y)=3×(-23)

15x+3y=-69

+7x-3y=-41

22x=-110

22. 22

x=-5

5x+y=-23

5(-5)+y=-23

-25+y=-23

+25. +25

y=2

When using elimination you add both equations together so that one variable cancels out the other. In this situation, y can be the variable. You must get the y-variables to cancel out leaving just the x- variables to solve for.

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