Question

Tìm x=?, biết:

x+(x+1)+(x+2)+(x+3)+...+(x+2016)=2017

Answer 1

x+(x+1)+(x+2)+(x+3)+...+(x+2016)=2017

( x + x + x + x + ... + x ) + ( 1 + 2 + 3 + ... + 2016 ) = 2017

2017x + 2033136 = 2017

2017x = 2017 - 2033136

2017x = -2031119

x = -2031119 : 2017

x = -1007

Answer 2

Ta có : x + (x + 1) + (x + 2) + (x + 3) +......+ (x + 2016) = 2017

=> (x + x + x + ..... + x) + (1 + 2 + 3 + .... + 2016) = 2017

=> 2017x + 2033136 = 2017

=> 2017x = 2017 - 2033136

=> 2017x = -203119

=> x = -203119 : 2017

=> x = -1007

Answer 3

Ta có :

x + (x + 1) + (x + 2) + (x + 3) +......+ (x + 2016) = 2017

=> (x + x + x + ..... + x) + (1 + 2 + 3 + .... + 2016) = 2017

<=> 2017x + 2 033 136 = 2017

<=> 2017x = 2017 - 2 033 136

<=> 2017x = -203 119

<=> x = -203 119 : 2017

<=> x = -1007