Question

(x+1)+(x+2)+(x+3)+.......+(x+10)=155

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Answer 1

suka blyat là đáp án bạn ạ

Answer 2

(x+x+x+...+x)+(1+2+3+...+10)=155

10x +55=155

10x=155-55

10x=100

x=10

Vậy x=10

Hok Tốt !!!!!!!!!!!!!!!!!!

Answer 3

(x+1)+(x+2)+(x+3)+...+(x+10)=155

x¹⁰+(1+2+3+...+10)=155

x¹⁰+55=155

x¹⁰=100

x=10

Answer 4

\(\left(x+1\right)+\left(x+2\right)+\left(x+3\right)+.........+\left(x+10\right)=155\)

\(\Leftrightarrow x+1+x+2+x+3+.....+x+10=155\)

\(\Leftrightarrow\left(x+x+.........+x\right)+\left(1+2+3+.....+10\right)=155\)

\(=10x+\frac{10.11}{2}=155\)

\(\Leftrightarrow10x+55=155\)

\(\Leftrightarrow10x=100\)

\(\Leftrightarrow x=10\)

Vậy \(x=10\)

Answer 5

Ơ lộn 10x với x¹⁰.Chán đời  =((

Answer 6

\(x+1+x+2+x+3+x+4+x+5+x+6+x+7+x+8+x+9+x+10=55\) 

\(10x+1+2+3+4+5+6+7+8+9+10=155\)   

1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 

Số số hạng 

( 10 - 1 ) : 1 + 1 = 10 

Tổng 

( 10 + 1 ) x 10 : 2 = 55 

\(10x+55=155\) 

\(10x=100\) 

\(x=10\)

Answer 7

\(\left(x+1\right)+\left(x+2\right)+\left(x+3\right)+.....+\left(x+10\right)=155\)

\(10x+\left(1+2+3+....+10\right)=155\)

\(10x+55=155\)

\(10x=100\)

\(x=10\)

Answer 8

100x+100=155(phá ngoặc ra)

100x=55

x=0.55

Answer 9

cảm ơn mn