Julius went on a volunteer trip to Central
America and took medical supplies with him.
He packed a bag with 50 pounds of supplies.
He brought pieces of equipment that weighed
10 pounds each and bottles of medicine that
weighed pound each prepresents the
number of pieces of equipment he brought
and b represents the number of bottles of
medicine he brought then the total weight can
be represented by the equation 10p+b 50.
the brought 3 pieces of equipment, how many
bottles of medicine did he bring?