Let x = the number.
\The quotient of a number and 3 represents
.
Eight less than quotient of a number and 3 represents
.

(Add 8 to each side)
(Apply additive inverse property:
)
(Apply additive identity property:
)
(Add:
)
(Multiply each side by 3)
(Cancel common terms)
Multiply:
)
The number is
.