Savannah had 400 chocolate chips. she saved x chips for a garnish, and mixed the rest of the chocolate chips evenly into 3 pans of brownies. how many chocolate chips were in each pan of brownies? write your answer as an expression.

The party planning committee has to determine the number of tables needed for an upcoming event. if a square table can fit 8 people and a round table can fit 6 people, the equation 150 = 8x + 6y represents the number of each type of table needed for 150 people.