α

a) 6x-5=613
=> 6x = 613-5 
=> 6x= 618 
=> x= 618 : 6 = 103 
vậy x =103 
b) (x-47)-115=0
=> (x-47)= 0+115=115 
=> x-47=115
=> x = 115 + 47 = 162 
vậy x=162 
c) 315+(146-x)=401
=> (146-x)=401-315 
=> (146-x)= 86
=> 146-x=86
=> x= 146-86
=> x= 60
vậy x=60 
d) 575-(6x +70) =445 
=> (6x+70)= 575-445 
=>6x+70= 130
=>6x=130-70
=>6x= 60
=>x= 60:6 
=> x=10 
vậy x=10 
e) x-105 : 21 =15 
=>x- (105:21) =15 
=>x- 5=15
=>x=15+5
=>x=20 
vậy x= 20
f) (x-105):21=15
=> (x-105) = 15.21
=>x-105= 315
=>x= 315+105 
=>x= 420 
vậy x=420 

6. Paul (not like).......................... maths.
7. Normally I get up at 8, but this week I (get up).......................... at 7.
8. My sister Sonia (live).......................... in London. 
9. My brother usually (go).......................... to work by train. 
 10. Lucy is not in London at the moment. She (stay).......................... in Paris.
11. Let's go jogging. It (not rain).......................... at the moment
 12. I (learn).......................... Spanish. My friend is teaching me.
13. How is your father? Is he still ill? No, he (get better).......................... . 14. Do not put the scissors away I (use).......................... them
15. Can you hear those girls? What (they talk).......................... about? 
16. Can you cook? No but I (learn).......................... . 
17. Are you thirsty? (you want).......................... something to drink? 
18. Ann (look for).......................... a new job.
19. 'What (your parents do).......................... ?' 'They are teachers.'
20. (you need).......................... a ticket to see your mother play at the theatre?