Answer:
(5, -3)
Step-by-step explanation:
Elimination is also sometimes called 'subtraction' method
Subtract the second equation form the first equation...
5x + y = 22
-
3x + y = 12
The result is
2x = 10 (5x - 3x = 2x, y - y = 0, 22 - 12 = 10)
Now solve for x...
x = 5 (divide by 2 on both sides)
Now that we know x = 5, plug that into either equation to solve for y...
5(5) + y = 22
25 + y = 22
y = -3
