, , , The mean of a set of numbers is the sum divided by the number of terms.Simplify the numerator.Tap for more steps…Subtract from .Add and .Subtract from .Divide by . Find the Mean (Arithmetic) 18 , -9 , 0 , -5 Meet the Team our Math Expers Our Professionals Robert Kristofer Anna Frok Magnus Flores Lydia Fran We are MathExperts Solve all your Math Problems: https://elanyachtselection.com/ We can solve all your math problems Learn More