Solve the following system of simultaneous equations to find the values of x₁and x₂: 5x₁ - 7x₂ = -18 4x₁ + 3x₂ = 20 2. Solve the following system of simultaneous equations to find the values of X1 and X2: 16x₁ + 12x₂ = 450 (0.5x₁ + 1.4x₂ = 25 3. Identify the feasible region for the following constraint: (please provide the constraint you would like to identify the feasible region for)
