Question

resolva a solução a seguir.
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Answer 1

Resposta:

X=1

Y=0

Z= 2

Explicação passo-a-passo:

x+ y +z= 3

-2x -y + z= 0

3x + y - 2z= -1

1 1 1 3

-2 -1 1 0

3 1 -2 -1

1 1 1 1 1

-2 -1 1 -2 -1

3 1 -2 3 1

D = 2+3-2-(-3+1+4)

D = 3-(2)

D= 1

__________

Dx= 6-1+0-(1+3-0)

Dx= 5-(4)

Dx = 5-4

Dx = 1

3 1 1 3 1

0 -1 1 0 -1

-1 1 -2 -1 1

X = Dx/d = 1/1

X= 1

____________

Dy = 0 +9+2-(0-1+12)

Dy = 11 -(11)

DY = 11-11

Dy = 0

1 3 1 1 3

-2 0 1 -2 0

3 -1 -2 3 -1

Y= dy/d= 0/1

Y =0

__________________

Dz= 1+0-6-(-9+0+2)

Dz= -5-(-7)

Dz= -5+7

Dz= 2

1 1 3 1 1

-2 -1 0 -2 -1

3 1 -1 3 1

Z=dz/d= 2/1=2