Question

x+x -1+x-2+x-3..........x-50 =225

Answer 1

x+x-1+x-2+x-3+x-4+...+x-50 = 225

<=> 51x-(1+2+...+50) = 225

<=> 51x - 1275 = 225

<=> 51x = 1500

<=> x = 500/17

Answer 2

x+x -1+x-2+x-3..........x-50 = 225

=> 51x-(1+2+...+50) = 225

=> 51x - 1275 = 225

=> 51x = 1500

=> x = 500/17