DuPhos produces two chemicals: Formula S and Formula T.
These chemicals are produced via two manufacturing processes. Process 1 requires 2 hours of labour and 0.5 kg of raw material to produce 50 grams of Formula S and 25 grams of Formula T. Process 2 requires 3 hours of labour and 1 kg of raw material to produce 75 grams of Formula S and 50 grams of Formula T. Sixty hours of labour and 20 kg of raw material are available. Demand for Formula S is unlimited, but only 0.5 kg of Formula T can be sold. Formula S sells for $16/gram, and Formula T sells for $14/gram. Any Formula T that is unsold must be disposed of at a cost of $2/gram. Formulate and solve an LP which maximises DuPhos's revenue less disposal costs. (Hint: use five decision variables: x1 = units of process 1, x2 = units of process 2, x3 = grams of Formula S produced, x4 = grams of Formula T that are sold, and x5 = grams of Formula T that must be destroyed).
I need to simply show this in algebraic form however i've hit a complete brick wall when it comes to the expression regarding the excess formula