Let x be an variable.
\Find the point that is the same distance from
2.5 and 3.5 i.e. mid point between
2.5 and 3.5.
Mid point "M" = 
Mid point between
2.5 and 3.5 is 0.5.
The distance from
2.5 to 0.5 is 3 units.
The distance from 0.5 to 3.5 is 3 units.
\So the equation is
.
Graph of the equation on a number line.
\
The equation is
.