5. State the condition under which the following equations have a unique solution:
x + 2y – 2z + 5 = 0
-x + 3y + 4 = 0
- 2y + z- 4 = 0.
Using Martin's rule, find the unique solution of the above system of linear equations.
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Answer:
x=6,y=7
Step-by-step explanation:
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