<=> 100x + (1 + 2 + 3 + .... .+ 100) = 5750
<=> 100x + 5050 = 5750
=> 100x = 700
=> x = 7
(x+1)+(x+2)+(x+3)+(x+4)+...+(x+100)=5750
(x+x+x+...+x)+(1+2+3+4+...+100) =5750
100x +5050 =5750
100x =5750-5050
100x =700
x =700:100
x =7
<=> 100x + (1 + 2 + 3 + .... .+ 100) = 5750
<=> 100x + 5050 = 5750
=> 100x = 700
=> x = 7
(x+1)+(x+2)+(x+3)+(x+4)+...+(x+100)=5750
(x+x+x+...+x)+(1+2+3+4+...+100) =5750
100x +5050 =5750
100x =5750-5050
100x =700
x =700:100
x =7
Tìm x biết (x+1)+(x+2)+(x+3)+(x+4)+(x+5)+.....+(x+100)=5750
A.(x+1)+(x+2)+(x+3)+......(x+100)=5750
B. x+(1+2+3+4+5+..........+100)=2000
C.(x-1)+(x-2)-(x-3)+(x-4)+........(x-100)=50
Giúp mình với ạ mai mình phải nộp bài rồi
x*(3-x)=0
(x+2)*(4*x-8)=0
(x+1)+(x+2)+(x+3)+...+(x+100)=5750
tim x
( x + 1 ) + ( x + 2 ) + ( x + 3 ) + ... + ( x + 100 ) =5750
( x + 1) + (x +2 ) + ( x +3 ) +..........+ (x + 100 ) =5750
b) (x+1) + (x+2) + (x+3) +...+ (x+100)=5750
(x+1)+(x+2)+(x+3)+...+(x+100)=5750
tìm x
(2+4+6+...+100) - (1+3+5+...+99) = ?
1 x 2 + 2 x 3 + 3 x 4 + ... + 99 x 100 = ?
3 x 4 + 4 x 5 + 5 x 6 + ... + 149 x 150 = ?
1 + (1 + 2) + ( 1 + 2 + 3) + (1 + 2 + 3 + 4) + ....... + (1 + 2 + 3 + ... + 99)
----------------------------------------------------------------------------------------------------------- ( gạch ngang phân số )
1 x 99 + 2.98 + 3.97 + ...... + 99 x 1
Tìm x biết
( x + 1 ) + ( x + 2 ) + ( x + 3 ) + ......... + ( x + 100) = 5750