Please help me on this question

QUESTION 2 Suppose the Demand and supply curve for a particular product is as follows: D(p)=60-20p S(p)=20p+20 Suppose city council considers implementing a small lump sum tax of $T per unit traded (i.e. if the consumer pays p then the producer receives p-T). Question: What is the tax incidence on consumers? Hint 2: The derivative of demand and supply with respect to price is just the slope of the curves, in this case -20, and 20 respectively