Bạn có thể cho cụ thể cái đề 

Đề cương chỉ ghi viết đường dẫn đến thư mục , tệp tin

Vậy máy bn bị ESĐ rùi

bị gì vậy bạn

-+88_
_+880_
_++88_
_++88_
__+880_________________________++_
__+888________________________+88_
__++880______________________+88_
__++888_____+++88__________+++8_
__++8888__+++8880++88____+++88_
__+++8888+++8880++8888__++888_
___++888++8888+++888888++888_
___++88++8888++8888888++888_
___++++++888888888888888888_
____++++++88888888888888888_
____++++++++000888888888888_
_____+++++++000088888888888_
______+++++++00088888888888_
_______+++++++088888888888_
_______+++++++088888888888_
________+++++++8888888888_
________+++++++0088888888_
________++++++0088888888_
________+++++0008888888_
________#############_

____________________________________$$$$
__________________________________$$____$
_________________________________$_______$
___$$$$_________________________$_________$
__$____$$______________________$____$_____$
_$_______$$___________________$____$$$____$
_$_________$$_____$$$$_$$$___$____$$$$$___$
$____________$_$$$__$$$__$$_$____$$$$$$___$
$____$$_______$_$$__$$$__$$$____$$$$$$$___$
$___$$$$_______$$$$_$$$___$$_____$$$$$$___$
$___$$$$$$_____$$$$_$$$$__$$$______$$$$$__$
$___$$$$$$$____$$$$_$$$$__$$$________$$$__$
$___$$$$$______$$$$_$$$$__$$$$____________$
$___$$$$_______$$$$_$$$$__$$$$____________$
$___$$$________$$$$_$$$$__$$$$____________$
$___$$_________$$$$__$$$__$$$$____________$
$______________$$$___$$$___$$$____________$
$_______________$_____$_____$_____________$
_$_________________________________________$
$________________________________$$$$_______$
$_______________________________$__$$$______$
$__________$$$$________________$$__$$$$_____$
$_________$$$__$_______________$$$$$$$$_____$
$________$$$$__$_______________$$$$$$$$_____$
$________$$$$$$$$______________$$$$$$$$_____$
$________$$$$$$$$_______________$$$$$$______$
$________$$$$$$$$_______$___$____$$$$_______$
$_________$$$$$$_____$__$$_$________________$
$__________$$$$_______$$__$________________$
_$_____________________$__$_______________$
__$_____________________$$_______________$
___$______________________________$$$___$
____$$___________________________$___$_$
______$$$_______________________$_____$
_________$$$$_____________$$$$$$______$
___$$________$$$$$$$$$$$$$____________$
__$__$________$___$_________________$$
__$___$_______$____$_____________$$$
__$___$________$____$___________$$
__$$$$$$_______$____$__________$__$
___$___$$_______$___$_________$____$
___$$$$$$$___$$$_$$$_________$_____$
____$___$$$$$__$_____$_______$_____$
_____$__$______$_____$_______$_____$
______$$$$$$$$$$_____$_______$____$
________________$$$$$_________$$$$
$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$

đề bài thiếu hay sao mà lại xuất hiện dấu cộng ở cuối vậy?

Trả lời :

Trên tử phần cuối cs ghi dấu + thì bấm máy lm sao ra đc bn =))

Xem lại đề bài ik bn !!!

~ Thiên Mã ~

minh đồng ý với ý kiến của sakura 

đồng ý

Bạn xem lại đề có đúng không?

Chứ mình thấy sai sai sao ý!

Phía cuối phần tư sau lại có dấu +

Bạn kiểm tra lại nhé! Chứ như thế bấm máy không ra là phải

Mik ko tin là ma có thật trên cõi trần gian .

Mik cx ko sợ ma bởi vì khi sợ mà đã có 1 người giúp mik vượt qua nỗi sợ .

Hk tốt

# LinhThuy ^ ^

2xy+x-3y=1

=>x(2y+1)-3y-1,5=-0,5

=>2x(y+0,5)-3(y+0,5)=-0,5

=>(2x-3)(y+0,5)=-0,5

=>(2x-3)(2y+1)=-1

=>(2x-3;2y+1)∈{(1;-1);(-1;1)}

=>(2x;2y)∈{(4;-2);(2;0)}

=>(x;y)∈{(2;-1);(1;0)}