Answer:
there is no possible way to answer this if you don't show the show the problem or parts
Answer:
3
Explanation:
(1/3x-1/6y)×18=4×18 ⇒ 6x-3y=72
6x-ay=8 if a=3 ⇒ 6x-3y=8
72≠8
a=3 ⇒ system has no solution
Answer: 1, 3, 2, 4. The first thing she did in the question is the first she should do when preparing. The second thing she did should be the third. The third thing she did should be the second thing she does. The fourth should be the last.
Explanation: When making a presentation, first one should choose a topic, then research it and write the presentation, then practice, then give it.
