Answer:
Answer (d): (5, -2)
Step-by-step explanation:
Let's use the substitution method. Eliminate "x" in the second equation. Solving the first equation for x, we get x = -3y - 1. Subbing this for x in the second equation, we get:
2(-3y - 1) + 2y = 6, or, after multiplying as indicated,
-6y - 2 + 2y = 6.
Combining like terms,
-4y = 8, so that y = -2. If y = -2, then x is found from x = -3y - 1 (see above):
x = -3(-2) -1 = 5
Then the solution is (5, -2) (Answer d)
