Ta thấy c + c = c . Mà số duy nhất cộng nó ra chính nó là 0. Vậy c = 0 

c = 0 nên b+c = b là hiển nhiên.

Ta có:a + a = d.

Vì dbc = bcc, nên d = c = b. Vậy, d và b bằng 0 => Vô lý (bạn nên xem lại đề) 

1111;2002;2200;2020;1021;1201;1102;1012;... 
15 so

=> 100% 

vì lên vì hok rùi 

n​uoc bot chu nuoc gi

Đồ thằng điên này nữa

X + 10 = 50 - 10

X+ 10 = 40

X        = 40 - 10

X        = 30

con hổ không ăn cỏ , nó ăn thịt

10 nha bạn hihi

Là bản đồ

1. "shall we meet her in my flat tomorrow? " i said

I suggested to meet her in my flat tomorrow.

2. "shall we have dinner after the theatre?" said peter

Peter suggested to have dinner after the theatre.

3. "shall we go for a walk?" said nam

Nam suggested to go for a walk

4. "why don't you move a long a bit?" she said

She suggested to move a long a bit.

5. "what about going for a drive instead?" ann said

Ann suggested to go for a drive instead

6. "what about flying a kite ?" he said

He suggested to fly a kite

7. "let's not tell anyone?" said tom

Tom suggested not to tell anyone

8. " why don't we go there by bus?" i said

I suggested to go there by bus.