SOLUTION: x-2y+3z=6 2x-y-z=-3 x+y+z=6

Question 73815This question is from textbook glencoe algebra 2
: x-2y+3z=6
2x-y-z=-3
x+y+z=6 This question is from textbook glencoe algebra 2

Answer by tazoftroy(22) (Show Source): You can put this solution on YOUR website!
First, add the last two equations to eliminate both the y and the z. You get , which makes
Then, add the first and last equation. You get
Now, we need to eliminate the x from one other equation so plug x into the last equation to get
Now multiply this by 2 in order to eliminate the z.
Subtract the two to get
Now just plug x and y in one of the equations to get
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