
89.
1) x1=2;x2=-1/5
2) x1=2 x2=-7
3) x1=3
4) x1=5/1 x2=-4/1
5) x1=37/15 x2=-1
6) x1=18/1 x2=-29/2
90.
1) x1=18/25 x2=-13/25
Արեն Մնացականյան Միջին դպրոց 9.5

89.
1) x1=2;x2=-1/5
2) x1=2 x2=-7
3) x1=3
4) x1=5/1 x2=-4/1
5) x1=37/15 x2=-1
6) x1=18/1 x2=-29/2
90.
1) x1=18/25 x2=-13/25

1. had left
2. had already seen
3. hasn’t finished
4. Have you just spoken
5. we had set off
6. I had already eaten
7. Had you heard

1. B
2. B
3. B
4. B
5. A
6. A
7. B


1. She was tired because she had been running.
2. They were hot because they had been dancing.
3. The garden was flooded because it had been raining all night.
4. Did they crash because they had been driving too fast?
5. When I arrived they had been waiting for over half an hour.
6. When I got there they hadn’t been waiting long.