Question

Tell if each is a solution to the equations (3, -6) for 5x - y = 21

Answer 1

Hello! The solution to this equation does work, because 5 * 3 is 15. When you subtract a negative, you’re actually adding. 15 + 6 is 21. 3 is x and -6 is y. When the values are plugged into the equation, they work.