Answer:
(5, -2)
Step-by-step explanation:
Let's solve the first equation for x: If x + y = 3, and if we subtract y from both sides, we get x = 3 - y. Next, substitute 3 - y for x in the second equation:
3(3 - y) + 2y = 11, or
9 - 3y + 2y = 11
Combining like terms: -3y + 2y = 11 - 9, or
-y = 2, or y = -2.
Then, from the equation x = 3 - y, which we found earlier,
x = 3 - (-2) = 5
Then the solution is (5, -2)
