X+3x+...+2013x=2+6...4026

Question

X+3x+...+2013x=2+6...4026

Answer 1

(1+3 + ... + 2013)х = 2 + 6 + ... + 4026

х * 1007*(1+2013)/2 = 1007 * (2 + 4026)/2

х * 1007 = 2014

х = 2

Ответ: 2