2.25 x 0.5 + 2.25 : 2 + 3.75
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2,25 -x + 0,9 =0,57
2,25 -x =0,57-0,9
2,25 -x =-0.33
x= 2,25- 0,33
x= 2,58
2,25 - x + 0,9 = 0,57
x + 0,9 = 2,25 - 0,57
x + 0,9 = 1,5
x = 1,5 - 0,9
x = 0,6
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12,5+x:0,25-2,25=12,25
x:0,25=12,25+2,25-12,5
x:0,25=2
x =2x0,25
x = 0,5
12,5+x:0.25-2.25=12.25
x : 0,25 = 12,25 + 2,25 - 12,5
x : 0,25 = 2
x = 2 x 0,25
x = 0,5
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(3^3)^2 + 2^x = 733
729 + 2^x = 733
2^x = 733 - 729
2^x = 4
Vậy x = 2
k cho mình nha
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Vừa nãy mới làm xong
C
24 A
25 B
26 C
27 A
28 D
B
1 It is the common cold
2 because every year millions of people catch it
3 They are a runny nose, a slight fever, coughing and sneezing
4 It will last for a few days
29. Which disease called common? → ………………………The common cold.………………………………………………..……
30. Why do we call it the common cold? →……………… Because every year millions of people catch it.…………………………………………………..……
31. What are the symptoms? → …………………They are: a runny nose, a slight fever, coughing and sneezing.…………………………………………………………………
32. How long will our cold last? →……………A few days……………………………………………………………
=2.25*\(\left(0.5+2\right)\)+3.75
=2.25*2.5+3.75
=5.625+3.75
=5.7