Question 187101
Solve each system in three variables 
14)2x-y+3z=14
x+y-2z=-5
3x+y- z=2 
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I used a matrix method to get:
x = 2
y = -1
z = 3
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18) x-3y+2z=-11
2x-4y+3z=-15
3x-5y-4z=5
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Using a matrix method I got:
x = 1
y = 2
z = -3
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Cheers,
Stan H.