Elimination: Subtraction

Solve the system of equations below:

x - y = 9

x + y = 7

(Write answer as an ordered pair)

Solve the system of equations below:

2x + y = 7

3x - y = 3

(Write answer as an ordered pair)

Solve the system of equations below:

2x + 3y = 8

3x + y = 5

(Write answer as an ordered pair)