Solve the system. -a+4b+2c=-8 3a+b-4c=9 b=-1 A. (0,1,1) B. (-1,-1,2) C. (1,1,-2) D. (2,-1,-1)

asked May 26, 2019 33.4k views

4 votes

Solve the system. -a+4b+2c=-8 3a+b-4c=9 b=-1

A. (0,1,1)
B. (-1,-1,2)
C. (1,1,-2)
D. (2,-1,-1)

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1 vote

-a+4b+2c=8
-2+4b+2c=8

3a+b-4c=9 b=-1
3a-1-4c=9

Bodine answered May 27, 2019

5.8k points

0 votes

Answer:

The awnser is D

Franceska answered May 30, 2019

6.3k points

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