neshamarie108 neshamarie108
  • 03-10-2020
  • Mathematics
contestada

What is the solution of the system x+2y+3z=6; y+2z=0; z=2

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Аноним Аноним
  • 03-10-2020

Answer:

z=2, y=-4, x=8

Step-by-step explanation:

since we know z is 2, we can plug it back into the equation to find y:

y+2*2=0

first, simplify:

y+4=0

then, subtract 4 from both sides:

y=-4

now we know what both z and y are, we can put the values back into the equation to find x:

x+2(-4)+3*2=6

first, simplify:

x-8+6=6

x-2=6

then, add 2 to both sides:

x=8

so the values are:

z=2, y=-4, x=8

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