hmmm
we might need to find greatest common denomenator?
or we could just do trial and error
hmm
wait a minute
lets do this
d=number of hot dog packs
b=number of hot dog bbuns
the number of hot dogs is 4 more than the number of buns
10d=4+8b
divide both sides by 2 to make it easier
5d=2+4b
one way is to do trial and error
try values of d and find what values work for b (remember, all whole values)
if d=1, no value works for b
if d=2, b=2
that is the smallest value
keep going up
if d=3, no value works for b
if d=4, no value works for b
if d=5, no value works for b
if d=6, b=7
so 6 packs is the answer
