Answer:
(x, y, z) = (2,-3,-3)
Step-by-step explanation: 4x+6y+4z = -22 Divide both sides by = 2x + 3y+2z= -11
To solve the system , rewrite it as two systems each consisting of two equations.
1) {-x-3y-3z = 16} {-6x+3y+2z = -27}
2) {-x-3y-3z=16} {2x+3y+2z=-11}
Solve the system of equations
1) -7x-z=-11
2)x-z=5
Write as a system of equations
{-7z-z=-11} {x-z=5}
Solve the system of equations
z = -3
x= 2
Substitute the given value of z, x into the equation : -x-3y-3z = 16
-2-3y-3x(-3)= 16
Solve for Y
y= -3
