Sửa đề: x+1+x+2+...+x+100=5750
=>100x+5050=5750
=>100x=700
=>x=7
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Sửa đề: x+1+x+2+...+x+100=5750
=>100x+5050=5750
=>100x=700
=>x=7
(x+1)+(x+2)+(x+3)+...+(x+100)=5750
(x+1) + (x+2) + (x+3) +....+ (x+100) = 5750
x+1+x+2+x+3+.......x+100=5750
(x + 1) + (x + 2) + (x + 3) + ... + (x + 100) = 5750
(x+1)+(x+2)+(x+3)+....+(x+100)=5750
(x+1)+(x+2)+(x+3)+...+(x+100)=5750
(x+1)+(x+2)+(x+3)+...+(x+100)=5750
(x+1)+(x+2)+(x+3)+....+(x+100)=5750
(x+1) + (x+2) + (x+3) + ..... +(x+100)=5750