SOLUTION: How do I solve this system of equations x + 2y + z = 135 x + y + z = 118 2x + 2y + 3z = 269

Algebra.Com
Question 963687: How do I solve this system of equations
x + 2y + z = 135
x + y + z = 118
2x + 2y + 3z = 269

Answer by Alan3354(69443)   (Show Source): You can put this solution on YOUR website!
How do I solve this system of equations
x + 2y + z = 135
x + y + z = 118
2x + 2y + 3z = 269
===================
Subtract the 2nd eqn from the 1st --> y = 17
------
Multiply the 1st eqn by 2, then subtract the 3rd.
=============================
I would use determinants.

RELATED QUESTIONS

Can I have the x y and z values for this system of equations? 2x + 4y + z = 1 x... (answered by richwmiller)
I am having some trouble with this one. Solve the system of equations. Let z be the... (answered by Edwin McCravy)
Please help solve these system of equations? x + y + z = ­1 2x + 4y + z = 1 x + 2y ­... (answered by Fombitz)
Solve system of linear equations x-2y+3z=-11 2x-z=8 3y+z=10 (answered by pran5)
How do I solve this system using elimination? -2x+2y+3z=0 -2x-y+z=-3... (answered by Alan3354)
How do I solve this system using elimination? -2x+2y+3z=0 -2x-y+z=-3... (answered by Alan3354)
How do I solve this system using elimination? -2x+2y+3z=0 -2x-y+z=-3... (answered by josgarithmetic)
Solve each system of equations. Let z be the parameter. x + 2y + 3z = 11 2x - y + z (answered by checkley71)
1.Solve the system of equations. x-2y+3z=7 2x+y+z=4... (answered by MathLover1,MathTherapy)