TALAXAN TALAXAN
  • 31-07-2018
  • Mathematics
contestada

weegy solve the system of equations 2x+3y=40 and -2x+2y=20

Respuesta :

DeanR
DeanR DeanR
  • 31-07-2018

Who's Weggy?

2x + 3y = 40

-2x + 2y = 20

These are set up so we can just add them for the solution:

5y = 60

y = 12

2y-20=2x

x=y-10=2

Answer: x=2, y=12

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