Homework Statement f(x,y,z) = e^(2x-z) W: x+y+z ≤ 1, x,y,z ≥ 0 Homework Equations 0 ≤ x ≤ 1-y-z 0 ≤ y ≤ 1-x-z 0 ≤ z ≤ 1-x-y The Attempt at a Solution I tried dzdydx and dydzdx but they don't work... or am I doing something wrong?