Evaluate each expression. 6 ÷ 6 + z + x − y; use x = 2, y = 5, and z = 6

Mr and mrs smith buy tickets for themselves and their four children. the cost of an adult ticket is ? 6 more than the adult ticket. the total cost of the six tickets is ? 40.50 work out the cost of an adult ticket. in your working let c be the cost of the child ticket and a be the cost of the adult ticket.

Solve this system of equations. 12x − 18y = 27 4x − 6y = 10

With finding limits of multi variable !