Question

prove that sum of any three
consequtive integers is equal to 6

Answer 1

x ,x+1, x+2
be the three consecutive no
x+x+1+x+2=6
3x+3= 6
x+1=2
x=1
proof ;
put the value in
x+x+1+x+2=6
hence proved

Answer 2

i dont think this can be proved.
 you see, 2+3+4 is not equal to 6
same goes for -1 + -2 +-3 is not equal to 6