Ahyllin
Ahyllin Ahyllin
  • 08-04-2020
  • Mathematics
contestada

3. Solve:

2x + y + z = 1
x – y + 4z = 0
x + 2y – 2z = 3
Select the appropriate response

A) x=-3 y=5 z=2
B) x=2 y=-1 z=3
C) x=2 y=-1 z=3

Help Please!

Respuesta :

amna04352
amna04352 amna04352
  • 28-04-2020

Answer:

A) x=-3 y=5 z=2

Step-by-step explanation:

2x + y + z = 1

2(-3) + (5) + (2) = 1

1 = 1

x - y + 4z = 0

-3 - (5) + 4(2) = 0

0 = 0

x + 2y - 2z = 3

-3 + 2(5) -2(2) = 3

3 = 3

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