mi 7. (20 points) A process involving mass balances is described by the following equations: m = m2 + m3 + m4 + ms m2 = mg + mio + mui mg = mg + m7 + m6 m12 = m4 + m + m11 m1 = 100 m5 5mg 0.84 m 12 = m4 + m7 0.7 m = m2 + m3 0.55 m1 = mg + m 12 0.2 mg = m 10 0.85 m2 = mg + m11 3.6 me = my + mg write a Matlab script that: (a) generates the matrix A and vector b required to solve the system of equations, and (b) solve the system using Gauss elimination