Consider the following linear programming problem: Maximize z = 6x + 10y Subject to x ≤ 4 y ≤ 6 3x + 2y ≤ 18 x ≥ 0, y ≥
Here's the idea in simple terms: using formula we get 5. Calculation gives this directly, check steps: apply rule, substitute values, simplify to get 5.
Ref: NCERT Mathematics Class XII — Linear Programming