SOLUTION: Solve to find the values of x,y and z. i) 3x-4y+z=29 ii) 7x+y-3z=26 iii) 5x+4y-3z=7 Please help! I really need this!

Algebra.Com
Question 912519: Solve to find the values of x,y and z.
i) 3x-4y+z=29
ii) 7x+y-3z=26
iii) 5x+4y-3z=7
Please help! I really need this!

Found 2 solutions by Fombitz, richwmiller:
Answer by Fombitz(32388)   (Show Source): You can put this solution on YOUR website!
Use Cramer's rule,


.
.
.


.
.
.


.
.
.


.
.
.

.
.
.

.
.
.

.
.
.

Answer by richwmiller(17219)   (Show Source): You can put this solution on YOUR website!
3x-4y+z=29,
7x+y-3z=26,
5x+4y-3z=7
x = 5, y = -3, z = 2

RELATED QUESTIONS

Determine the solutions for the following systems of equations. Put your answers in... (answered by Fombitz)
Please help... I tried to solve this, but no result. I eliminated z in 1&2,and 2&3, but... (answered by htmentor,ikleyn)
Can I have the x y and z values for this system of equations? 2x + 4y + z = 1 x... (answered by richwmiller)
I need to solve the following system of linear equations with three variables. Here is... (answered by ptaylor)
Please help me with this, I tried to solve it, but cannot get the solution Solve the... (answered by Edwin McCravy,AnlytcPhil)
i need to solve -2x+y+z=-2 5x+3y+3z=71 4x-2y-3z=1 i... (answered by ankor@dixie-net.com)
I want to solve for x,y,z the equations i want to solve are -4y+z=-7 and 2x+2y+3z=4 (answered by Alan3354)
Hello. I hope I put this question in the correct topic. I am norwegian, and I don't know... (answered by richwmiller,MathTherapy)
additional assistance requested in understanding how to get a solution solve the... (answered by richwmiller)