Answer:
(1/13, 15/26)
Step-by-step explanation:
If you really want to add them without doing anything to them, we get:
4x - 4y = -2
+ -9x - 4y = -3
= -5x - 8y = -6
But I suspect you want to solve for x and y.
In this case, if you want to eliminate and solve for x and y, we will subtract instead to make it easier:
4x - 4y = -2
- -9x - 4y = -3
= 13x + 0y = 1
13x = 1
x = 1/13
Plug x back in to get y:
4x - 4y = -2
4(1/13) - 4y = -2
4/13 - 4y = -2
4y = 30/13
y = 15/26
