Question

( x + 1 ) + ( x + 2 ) + ( x + 3 ) + ... + ( x + 100 ) = 5050

Answer 1

100x + (1+2+3+4+...+100) = 5050

100x +  { [ ( 100-1):1+1 ] . [ (100+1):2 ] } = 5050

100x  + 5050 = 5050

100x = 0

=> x =0

Answer 2

( x + 1 ) + ( x + 2 ) + ( x + 3 ) + ... + ( x + 100 ) = 5050

=> ( x+x+.... +x)+(1+2+3+4+5+....+100)

 tổng 1+2+3+4+....+100=5050

=> x=0

Answer 3

x=0 ^_^ Good Luck

Answer 4

0