The ages of three brothers are consecutive integers with a sum of .
Write an equation.
\Let is the least integer, then the next two consecutive integers are
and
.
Sum of the three consecutive integers equal .
.
The equation is .
Find how old are the brothers.
\ (Orginal equation)
(Simplify)
(Subtract
from each side)
(Apply additive inverse property :
)
(Divide each side by
)
(Cancel common terms)
Therefore, the ages of three brothers consecutive integers and
are
.
The ages of three brothers are .