Minimize
​ $c = 50 x + 50 y + 11 z$

Short Answer

Minimize
​ $c = 50 x + 50 y + 11 z$ ​
subject to
​ $$\begin{aligned}2 x + z & \geq 9 \\2 x + y - z & \geq 4 \\3 x + y - z & \leq 6 \\x \geq 0 , y \geq 0 , z & \geq 0\end{aligned}$$ ​
If there is no solution, do not fill the fields.
​ $c =$ __________
​ $x =$ __________
​ $y =$ __________
​ $z =$ __________