Question

[Trần Hiền Nhi]

Tìm x: (x+1)+(x+2)+(x+3)+...+(x+99)+(x+100)=50

Answer 1

[Đỗ Phạm Ngọc Phước]

(x+1)+(x+2)+(x+3)+...+(x+99)+(x+100)=50

100x+5050=50

100x=-5000

x=-50