Question

1+3+5+7+....+1993+1995+2xX =996006

TIM X NHA !

Answer 1

(1+3+5+7+...+1995)+2x=996006

[(1995+1).998 : 2] + 2x = 996006

996004+2x=996006

=> 2x = 2

=> x=1

Answer 2

(1+3+5+7+...+1995)+2x=996006

[(1995+1).998 : 2] + 2x = 996006

996004+2x=996006

=> 2x = 2

=> x=1