x+(x+1)+(x+2)+.....+(x+2013)=2035147
2014x+(2013+1).2013:2=2035147
=> 2014x+2014.2013:2=2035147
=> 2014x+2007006=2035147
=> x=(2035147-2007006):2014
=> x=28141:2014
=> x= ko chia hết
x + (x + 1) + (x + 2) + ... + (x + 2013) = 2035147
2014x + 2013.2014:2 = 2035147
2014x + 2027091 = 2035147
2014x = 2035147 - 2027091
2014x = 8056
x = 8056/2014 = 4
x + (x + 1) + (x + 2) + ... + (x + 2013) = 2035147
2014x + (1 + 2 + ... + 2013) = 2035147
2014x + 2027091 = 2035147
2014x = 8056
x = 4
=x.2014+(1+2+3+...+2013)=2035147
x.2014+2027091=2035147
x.2014=2035147-2027091
x.2014=8056
x=8056:2014
x=4