X-2y = -4
Find FIVE solution pairs (x, y).

(-4,0)
(-2,1)
(0,2)
(2,3)
(4,4)

To find these point you need to solve for y. To do so, start by subtracting x from both sides

-2y = -x-4

Then, divide both sides by -2 to get y alone.

y = 1/2x+2

Next, graph the line or make a table of values to see solution points on the line.

The answer is 1 because you have to flip the sign when dividing by negative number and 3