[( 4 : x + 28) . 3 + 55 ] :5 =35

[( 4 : x + 28) .3 + 55 ]      =35 . 5

  ( 4 : x + 28 ) . 3 + 55     =  175

  (4 . x + 28 ) . 3              =  175 - 55

  (4 . x + 28) . 3               =       120

   4 .x + 28                      = 120 :3 

   4. x + 28                       =    40

   4 .x                              = 40 - 28

   4 .x                              =      12  

       x                              =  12 : 4

       x                               =     3

Bạn nhớ kiểm tra lại nhé

Quá dễ: x = 0 vì 2016⁰ = 1

                        2017⁰ = 1

vậy ta có x = 0

900*900=810000

tk nhé

Complete sentence with ONE prepostition:

1. My brother often spends most of his free time.............comics.

2. I'm really disappointed ............... the result of the test.

3. No one was absent ................. class yesterday.

4. Congratulate you ................. passing the exam!- Thank you.

5. I often borrow the comics ................. my cousin.

6. Bao is very good ................. fixing house hold appliances.

Rewrite sentences:

1. What a luxurious car!

➞How ................................!

2. We found the film boring.

➞We were........................

3. It's too cold for him to go swimming. ( so..... that)

➞...................................................

II. Find and correct one mistake in each sentence:

1. My father has less days of than Tim's father.

2. You look tired. You'd better stay inside on recess.

3. Nga is a keen student and she studies very hardly before tests.

4. My father always has a lot of houseworks to do.

I. Choose the best answer to complete sentence:

1. .............. interesting stories are!

A. What B. Why

C. How D. Which

2. I need some butter. I'm going to the ...............

A. grocer's B. stationer's

C. butcher's D. baker's

3. I promise I ............... and visit you

A. are going to come

B. will come

C. am coming

D. came

4. My brother doesn't like pork, and ................

A. either do I B. neither do I

C. neither I do D. I don't, too

5. I am pleased that you and your family are ............

A. good B. well

C. best D. better

6. She is never late for school and ........... is her sister.

A. either B. so

C. neither D. too

1+2+3+4+5+6+7+8+9+10

=(1+10):2x10

=11:2x10

=55