fixing the typo so the 3rd line reads
x+2y+5z=17
still doesn't produce one of the choices.
Another typo?
Which ordered triple is a solution of this system?
2x+y-z=7
-x-2y+4z=-15
x+2y=5z=17
(-2, 6, -5)
(1, 3, 2)
(2, 5, -2)
(3, 1, 0)
1 answer
1 answer