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Morgarella [4.7K]
3 years ago
14

Please help me ASAP!!

Mathematics
1 answer:
Sonja [21]3 years ago
5 0

Answer:

Option c is the correct answer.

Step-by-step explanation:

1 -2 3 -2

6 2 2 -48

1 4 3 -38

   

R2-6R!=R2    

R3-R1=R3    

1 -2 3 -2

0 14 -16 -36

0 6 0 -36

   

R3/6=R3    

   

1 -2 3 -2

0 14 -16 -36

0 1 0 -6

The last row gives y =-6

II row gives 14y-16z=-36 : Substitute for y to get z=-3

From I row x-2y+3z=-2

Substitute for y and z

x=-2+2y-3z = -5

Hence correct solution is

(-5,-6,-3)

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