16. PLEASE HELP EXPLAIN THE ANSWER.. I KEEP GETTING x3 NOT x2 or x4

Question 4: What are x1, x2, x3, and x4 for the following set of equations? Use Matlab to get the solution x1+2x2 + 3x3 + 4x4 = 30 ' X1 +X2, X3= 0

Explanation:

Question 4: What are x1, x2, x3, and x4 for the following set of equations? Use Matlab to get the solution x1+2x2 + 3x3 + 4x4 = 30 ' X1 +X2, X3= 0

a saline water is fed to a reverse osmosis unit at flow rate o rotameter connected to reject (retentate) line reads 8 installed in reject and permeate line reads 15.2 milli siemens/cm and 300 micro siemens/com respectively.