
Alyssa F. answered 10/11/19
Highly Experienced Elementary Tutor/Teacher
An open equation is an equation with one or more variables that may be true or false depending on the values of the variables. In the equation 2x + 3 = 6, x is a variable. If you substitute 1 for 1, the equation would be tree. If you substitute any other number for x, the equation would be false. Therefore, 2x + 3 = 6 is an open equation.