kadinmorgan
kadinmorgan kadinmorgan
  • 08-11-2018
  • Mathematics
contestada

PLEASE HELP I DONT UNDERSTAND!!
Determine the solution to the system of equations

y= -1/2x+3
3x-y=4

Respuesta :

dawsonreidsherer dawsonreidsherer
  • 08-11-2018

First set both equations equal to y

y = -1/2x + 3

y = 3x - 4

Then set these two equal because they both equal y

-1/2x + 3 =  3x + 4

Combine like terms and solve

7 = 3.5x

x = 2

y also = 2 when you plug it back in

Therefore, (2,2)

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