+7 1. Write a matrix representing the system of equations
x+2y+z=5
2x-y+2z=15
3x+y-z=8
Solve the system by transforming your matrix into reduced row echelon form. State the solution as an ordered triple.
2. Solve the system of equations by forming a matrix equation, then solve using inverse matrices. State your answer as an ordered pair.
x+2y=-7
-3x-5y=23
Appreciate any help!
