Answer:
(-1, -5)
Explanation:
Solve x + y = -6 for x
Subtract y from both sides.
Substitute -y - 6 for x in 7x + y = -12
Simplify both sides.
Add 42 to both sides.
Divide both sides by -6.
Substitute -5 for y in x = -y - 6
Simplify both sides of the equation.
Therefore, the answer is (-1, -5).