Fill the Gaps - A Math Equation Puzzle : 3 _ 9 _ 6 _ 6 = -4

This enigma necessitates rapid thought and problem solving proficiency. You'll be given a mathematical expression with three missing operators. Your responsibility is to discover the missing operators and complete the expression. It's a tremendous way to test your knowledge of basic math operations and strengthen your logical abilities. Get ready to put your mental acuity to work and have a blast!