a binder, a pack of notebooks and a box of pencils cost 14$ the pencils cost twice as much as the binders the pack of notebooks cost two dollars more than the binder how much does each cost
b = binder
n = notebooks
p = pencils
b + n + p = 14
p = 2b
n = b + 2
Substitute => b + (b + 2) + (2b) = 14
4b + 2 = 14 => b = 3, n = 5, p = 6
binders = 3$
pack of notebooks = 5$
box of pencils = 6$
