Q13: Solve the system using Gauss-Jordan elimination. <img
Q14: <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB8693/.jpg" alt=" Find the cofactor
Q15: Find A - B. <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB8693/.jpg" alt="Find
Q16: Solve the system, if possible. <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB8693/.jpg"
Q17: Determine which ordered pair is a solution
Q19: Solve the system, if possible. <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB8693/.jpg"
Q20: Solve the system by substitution, if possible.
Q21: Solve the system, if possible. <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB8693/.jpg"
Q22: Determine which ordered pair is a solution
Q23: Solve the system. <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB8693/.jpg" alt="Solve the