(3737x 50- 5050 x 36): (1+2+3+........+99+100)

= (37 . 101 . 50 - 50 . 101 . 36) : \(\frac{100.\left(100+1\right)}{2}\)

= 50 . (37 . 101 - 101 . 36) : 5050

= 50 x 101 - 5050

= 5050 - 5050

= 0

Từ dòng thứ 4 sửa lại :

= 50 x 101 : 5050

= 5050 : 5050

= 1

bằng 1 

\(\frac{1}{x}\)+\(\frac{2}{x}\)+\(\frac{3}{x}\)+....+\(\frac{99}{x}\)+\(\frac{100}{x}\)=5050

\(\frac{1+2+3+....+99+100}{x}\)=5050

\(\frac{5050}{x}\)=5050

\(\frac{5050}{x}\)=\(\frac{5050}{1}\)

\(\Rightarrow x=1\)

Vậy x = 1

a: \(=68\cdot72\cdot49\cdot\left[324-324\right]=0\)

b: \(=\left(1250-1250\right)\cdot\left(1+...+100\right)=0\)

\(a,\left(68\times72\times49\right)\times\left(27\times12-9\times36\right)=\left(68\times72\times49\right)\times0=0\\ b,\left(25\times50-125\times10\right)\times\left(1+2+...+100\right)=0\times\left(1+2+...+100\right)=0\)

a, ( 68 × 72 × 49 ) × ( 27 × 12 − 9 × 36 ) = ( 68 × 72 × 49 ) × 0 =

b, ( 25 × 50 − 125 × 10 ) × ( 1 + 2 + ... + 100 ) = 0 × ( 1 + 2 + ... + 100 ) = 0

\(5\left(x-1\right)+3=43\)

\(5\left(x-1\right)=40\)

\(x-1=8\)

\(x=9\)

\(\left(1+2+3+...+50\right)+x=5050\)

\(\dfrac{50\left(50+1\right)}{2}+x=5050\)

\(1275+x=5050\)

\(x=3775\)

\(\left(2x+1\right)^3=64\)

\(\left(2x+1\right)^3=4^3\)

\(2x+1=4\)

\(2x=3\)

\(x=1,5\)

( x + 1 ) + ( x + 2 ) + ( x + 3 ) + ... + ( x + 100 ) = 5050

100x + 101.100 : 2 = 5050

100x + 5050 = 5050

100x = 0

x = 0

(x + 1) + (x + 2) + (x + 3) + ... + (x + 100) = 5050

(x + x + x + ... + x) + (1 + 2 + 3 + ... + 100) = 5050

      100 số x

100.x + (1 + 100).100:2 = 5050

100.x + 101.50 = 5050

100.x + 5050 = 5050

=> 100.x = 0

=> x = 0

Ủng hộ mk nha ^_-

\(\text{( x + 1 ) + ( x + 2 ) + ( x + 3 ) + ... + ( x + 100 ) = 5050 }\)

\(x+\left(100+1\right)\cdot100:2=5050\)

\(x+5050=5050\)

\(\Rightarrow x=0\)

100x + (1+2+3+4+...+100) = 5050

100x +  { [ ( 100-1):1+1 ] . [ (100+1):2 ] } = 5050

100x  + 5050 = 5050

100x = 0

=> x =0

( x + 1 ) + ( x + 2 ) + ( x + 3 ) + ... + ( x + 100 ) = 5050

=> ( x+x+.... +x)+(1+2+3+4+5+....+100)

 tổng 1+2+3+4+....+100=5050

=> x=0

x=0 ^_^ Good Luck

(x+1) + (x+2) +....+(x+100) = 5050

100 x X + ((100+1) x 100 : 2) = 5050

100 x X + 5050 = 5050

100 x X = 0

=> x = 0         

(X+1)+(X+2)+(X+3)+...+(X+100)=5050

=>(X+X+X+...+X)+(1+2+3+...+100)=5050

=>100X+[(1+100)x100:2)]=5050

=>100X+(101x100:2)=5050

=>100X+(10100:2)=5050

=>100X+5050=5050

=>100X=5050-5050

=>100X=0

=>X=0:100

=>X=0

Đấp án 

x = 0

Vậy x=0

(X + 1) + (X + 2) + (X + 3) + … + (X + 99) + (X +100) = 5050

(X+X+X+...+X+X) + (1+100) x 50 = 5050 

100 x X + 101 x 50 = 5050

100 x X + 5050 = 5050

100 x X = 5050 - 5050

100 x X = 0

X= 0: 100

X= 0

`(x + 1) + (x + 2) + (x + 3) + … + (x + 99) + (x +100) = 5050`

`(x+x+x+...+x+x) + (1+2+3+...+99+100)=5050`

Số số hạng là : `(100-1)/1+1= 100` ( số hạng )

Tổng dãy là : `(100+1) xx 100 : 2=5050`

`100x+5050=5050`

` 100x=5050-5050`

` 100x=0`

`x=0`

100x+(1+2+3+...+100)=5050

100x+5050=5050

100x=5050-5050

100x=0

x=0:100

x=0