There are 12 ordered pairs of integers (x,y) that satisfy x^2 + y^2 = 25. What is the sum of all the x-values?
x y
1 = (0, -5) 2 = (-3, -4) 3 = (3, -4) 4 = (-4, -3) 5 = (4, -3) 6 = (-5, 0) 7 = (5, 0) 8 = (-4, 3) 9 = (4, 3) 10 = (-3, 4) 11 = (3, 4) 12 = (0, 5)
Add up all the x values to the left.
