SOLUTION: 2x + 3y- z= -16 x + 2y + 2z= -3 -3x + y + z= -5

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Question 906681: 2x + 3y- z= -16
x + 2y + 2z= -3
-3x + y + z= -5

Answer by MathLover1(20850)   (Show Source): You can put this solution on YOUR website!
............1
............2
.............3
_________________
............1
............2..multiply by
___________________
............1
............2
___________________
............1
............2.....add both
______________________


................1a
now take these two:
............2....multiply by
.............3
____________________.and add






............1b

use 1a and 1b to calculate
................1a
............1b
________________
=>




now find



and, find
............2







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