Solve the system by substitution.
— бу = x
x + y = -30

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.

Can someone me with this problem . show your work .

Find all solutions for 2y - 4x =2 y = 2x + 1 site: socratic.org