Question

solve using augmented matrix methods

i have tried doing this 3 times and I dont get it ! help!!

if you could write down step by step clearly it will help thank you

Solve using augmented matrix methods. 3xy - x2 = 7 -2xy + 2x2 = -2 Select the correct choice below and, if necessary, fill in the answer box to complete your choice. O A. The unique solution is xy = and X2 OB. The system has infinitely many solutions. The solution is X, = and X2 = 1 (Simplify your answer. Type an expression using t as the variable.) C. There is no solution.

Answer 1

solution: 3 de, - H2 = 7 -22, +2222 = -2 Conveet the system in mateide form This is nothing but the AX=8 where, Now augmented form: (A : B] - 3 -1! ;] | -2 2 -2 RI: R,+ R2 1 1 1 5 - 2 21-2 U R2 : R2+2R, 1 1 1 5

K2 1 / 5 R! RoRzTi 0 37 solution from H, = 3 . this mateixe *2 = 2 . Answer :- option A ] The unique solution is and H2=2 x,=3