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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)

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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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)

asked
User Joe Skeen
by
8.4k points

2 Answers

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

3a+b-4c=9 b=-1
3a-1-4c=9
answered
User Bodine
by
8.0k points
0 votes

Answer:

The awnser is D

answered
User Franceska
by
8.5k points
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