Let we solve the sysyem by using Gauss method:
⎝⎛12310−2−110===475⎠⎞
1) Add 2 equation to the1 equation
⎝⎛32310−2010===1175⎠⎞
2) We add 1 equation multiplied by 2 to to the 3 equation:
⎝⎛329100010===4727⎠⎞
3) Divide 3 eqution by 9
⎝⎛321100010===117927=3⎠⎞
4) Substract from 1 equation 3 equation multiplied by 3 and fron 2 equation 3 equation multiplied by 2
⎝⎛001100010===11−3⋅3=27−2⋅3=13⎠⎞
Matrix to the left is unit now then problem is solved.
Answer:
X=3Y=2Z=1
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