Question 356253
Solution of Linear Systems by the Echelon Method.
4x-y+3z=-2
3x+5y-z=15
-2x+y+4z=14
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You can check your answers:
x = -1
y = 4
z = 2
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And:

x+2y+3z=11
2x-y+z=2
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You need a 3rd eqn