SOLUTION: Hello, I am trying for hours to find the solution for the following equation. Unfortunately I am getting always a different answer. Can anybody help me solve this problem? x+

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Question 313934: Hello,
I am trying for hours to find the solution for the following equation.
Unfortunately I am getting always a different answer. Can anybody help me solve this problem?
x+y+z+u=1
2x+3y-4z+5u=2
3x-4y-3z+6u=0
Thanks a million in advance
Answer by Edwin McCravy(20056)   (Show Source): You can put this solution on YOUR website!

 

The augmented matrix is:



-2*R1+R2->R2
-3*R1+R3->R3



-1*R2+R1->R1
 7*R2+R3->R3



*R3->R3



-7*R3+R1->R1
 6*R3+R2->R2



Rewrite as this system of equations:



Simplify:



Solve for x, y and z




Let , where k can represent any arbitrary
value, and we have this solution:



Edwin
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