Help, 50 points Solve the system of equations below using substitution.

y = 3x

x − y = −6

Solution: ( , )

Sasha delivers newspapers to subscribers that live within a 4 block radius of her house. sasha's house is located at point (0, -1). points a, b, c, d, and e represent the houses of some of the subscribers to the newspaper. to which houses does sasha deliver newspapers?