Write a system of equations to describe the situation below, solve using elimination, and fill in the blanks.
An employee at a party store is assembling balloon bouquets. For a graduation party, he
assembled 1 small balloon bouquet and 7 large balloon bouquets, which used a total of 131
balloons. Then, for a Father's Day celebration, he used 188 balloons to assemble 10 small
balloon bouquets and 4 large balloon bouquets. How many balloons are in each bouquet?
The small balloon bouquet uses
balloons and the large one uses
balloons.