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Question 73110: Hi! I am having trouble with writing determinants and understanding Cramer's Rule. Please help me! This is one of my practice questions. There are a few like this so I am hoping if you show me how to do this one, I will be able to do the rest of them myself. Thanks!
Cramer's Rule is used to solve the system of equations:
3x-y+2z=17, 4x+2y-3z=10, and 2x+5y-9z=-6.
Write a determinant to represent the numerator for z.
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! 3x-y+2z=17,
4x+2y-3z=10, and
2x+5y-9z=-6.
Write a determinant to represent the numerator for z.
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z numerator:
1st row: 3 ; -1 ;17
2nd row: 4 ; 2 ;10
3rd row: 2 ; 5 :-6
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Cheers,
Stan H.
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