Question

Classifique e resolva os sistemas lineares escalonados
A) 2x-y+3z=0
2y-z=1
2z=-6

Answer 1

Resposta:

z=-6/2=-3

2y-(-3)=1

2y+3=1

2y=1-3

2y=-2

y=-1

2x-(-1)+3(-3)=0

2x+1-9=0

2x=8

x=4