(x+1)+(x+2)+(x+3)+....+(x+100) = 7450
=> 100x+ (100+1).100:2=7450
<=> 100x+ 5050=7450
<=> 100x= 2400
<=> x=24
Giải:
(x+1)+(x+2)+(x+3)+...+(x+100)=7450
100x+(1+100).100:2 =7450
100x+5050 =7450
100x =7450-5050
100x =2400
x =2400:100
x =24
Chúc bạn học tốt!