SOLUTION: 1. Solve the system of equations below. Show all work! 2x + y – z = 5 2x + 8y + 4z = 32 30x + 12y – 4z = 24 Answer:

Algebra ->  Equations -> SOLUTION: 1. Solve the system of equations below. Show all work! 2x + y – z = 5 2x + 8y + 4z = 32 30x + 12y – 4z = 24 Answer:       Log On


   

Question 1052967: 1. Solve the system of equations below. Show all work!
2x + y – z = 5
2x + 8y + 4z = 32
30x + 12y – 4z = 24
Answer:
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
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On Cramer's rule for solving systems of 3 equations in 3 unknowns see the lessons
    - Determinant of a 3x3 matrix
    - Co-factoring the determinant of a 3x3 matrix
    - HOW TO solve system of linear equations in three unknowns using determinant (Cramer's rule)
    - Solving systems of linear equations in three unknowns using determinant (Cramer's rule)
    - Solving word problems by reducing to systems of linear equations in three unknowns
in this site.

Also, you have this free of charge online textbook in ALGEBRA-II in this site
    - ALGEBRA-II - YOUR ONLINE TEXTBOOK.

The referred lessons are the part of this online textbook under the topic
     "3x3-Matrices, determinants, Cramer's rule for systems in three unknowns"