Determine how many ounces of 20% hydrochloric acid solution and how many ounces of 70% hydrochloric acid solution are required to produce 20 ounces of 50% hydrochloric acid solution using the following steps. (a) Set up a system of linear equations. (b) Find the corresponding augmented matrix. (c) Perform Gauss Jordan elimination on your augmented matrix. (d) Interpret the results of your elimination.