isiscarter2019 isiscarter2019
  • 03-12-2017
  • Mathematics
contestada

-4x+2z=14,y=x+z+12,-2x-4z=22 using elimination

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vunderkid
vunderkid vunderkid
  • 03-12-2017
-4x+2z=14
-2x-4z=22
y=x+z+12

-4x-x+2z-2z=14+11
-5x=25
x=-5
10-4z=22
-4z=12
z=-3
y=-5-3+12
y=4
Answer:
x=-5; y=-3; y=4
Answer Link

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