Answer:
x = 0 y = 1.
Step-by-step explanation:
Write it in matrix form ( r1 and r2 refer to row 1 and row 2):-
( 5 -2 | -2) r1
(-1 4 | 4) r2
4r2 + r1 --> r1 :
( 1 14 | 14)
(-1 4 | 4)
r2 + r1 ---> r2
( 1 14 | 14)
( 0 18 | 18)
r2 / 18:
( 1 14 | 14)
( 0 1 | 1) So y = 1.
r1 - 14r2 = r1
( 1 0 | 0) x = 0
( 0 1 | 1)
