Ec3: x - (2 * y) - (3 * z) = -12
Ec2: (3 * x) + y - (5 * z) = -11
Ec1: (1 / 2 * x) + (3 * y) + z = 14
f = IntersectPath(Ec1, Ec3)
g = IntersectPath(Ec2, Ec3)
A = Intersect(f, g)