SOLUTION: Solve using Cramers rule: 1. 2x + 5y = 1 3x + 4y = 12 2. x - 5y = 4 -3x + 4y = 4 3. 2x + y - z = -7 x - 4y + 3z = 5 6x - 2y + 5z = 9 Expand by column thr

Algebra ->  Matrices-and-determiminant -> SOLUTION: Solve using Cramers rule: 1. 2x + 5y = 1 3x + 4y = 12 2. x - 5y = 4 -3x + 4y = 4 3. 2x + y - z = -7 x - 4y + 3z = 5 6x - 2y + 5z = 9 Expand by column thr      Log On


   

Question 295483: Solve using Cramers rule:
1. 2x + 5y = 1
3x + 4y = 12
2. x - 5y = 4
-3x + 4y = 4
3. 2x + y - z = -7
x - 4y + 3z = 5
6x - 2y + 5z = 9
Expand by column three:
4. 3 6 1 2
5 9 0 3
-2 -1 0 11
4 -2 0 12

Answer by Deina(147) About Me  (Show Source):
You can put this solution on YOUR website!

There are other rules that you can find at Rules for asking questions, but do pay particular attention to these:

  • Daily limit of 4 problems per day. All tutors on algebra.com are FREE.

  • One problem per submission. Do not dump your whole homework in one question.


  • If you can, show what you have tried. Tutors like students who try. If a tutor gives you credit for work shown, that problem would not count towards your daily limit.