Question

[nguyễn Thị Hồng Thanh]

(x+1)+(x+2)+(x+3)+....+(x+2013)=0

x bằng bao nhiêu

Answer 1

[trang chelsea]

kho..............wa...................troi................thi......................ret.....................ai..............tich...............ung.....................ho....................minh..................voi................ret............wa

Answer 2

[Nguyên Trinh Quang]

-1007 nha ban nhe