Question

5. 3х-у - 2z = 2
2y - z = -1
3х - бу = 3
Examine the consistency of the system of equations:​

Answer 1

Answer:

x=3, y =1, z=3

Step-by-step explanation:

from eqn 3

6y=3x-3

2y =x-1 ---4

from eqn 2

and put value of 2y from eqn 4

x-1-z=-1

z=x-1+1

x=z ---5

multiply 2 to eqn 1

6x-2y-4z=4

put value of 2y from eqn 4 and value of z from eqn 5

6x-x+1-4x=4

x=4-1

x=3 ---6

put value of x from eqn 6 into eqn 5

z= 3

put value of x from eqn 6 into eqn 4

2y=3-1

y = 1