solve this equations. Write the solution as an ordered triple
5x + 3y + z = 23
x - 3y + 2z = 10
14x - 2y + 2z = 85
Below is the answer. I didn't show you how because
there are at least 5 different ways to solve such systems
of equations.
1. Elimination by addition, subtraction, and substitution.
2. Determinants (Cramer's tule)
3. Gaussian elimination with back-substitution (matrices)
4. Row reduced echelon form (matrix)
5. AX=B (inverse matrix method).
Post again telling which method you are studying and we'll
show you how to do it by whatever method that is.
Answer: (x, y, z) = (
, 
, 
)
That's an ugly answer but it's correct for what you typed above.
Be sure you typed it correctly.
Edwin
