Question

Resolva os sistemas : 3x-y+z=1 2x+3z=-1 4x+y-2z=7

Answer 1

Ola Nilina

3x - y + z = 1
2x + 3z = -1
4x + y - 2z = 7

7x - z = 8
2x + 3z = -1
21x - 3z = 24 
23x = 23

x = 1
7 - z = 8
z = -1

3 - y - 1 = 1
y = 1

S = (x,y,z), (1,1,-1) 

Answer 2

Resposta:

3x - y + z = 1

2x + 3z = -1

4x + y - 2z = 7

7x - z = 8

2x + 3z = -1

21x - 3z = 24  

23x = 23

x = 1

7 - z = 8

z = -1

3 - y - 1 = 1

y = 1

S = (x,y,z), (1,1,-1)  

Explicação passo a passo: