Final answer:
To determine if a given value is a solution of the equation, substitute the value into the equation and check if it satisfies the equation.
Step-by-step explanation:
To determine if a given value is a solution of the equation, we substitute the value into the equation and check if it satisfies the equation. In this case, the equation is t - 2.1 = 0. To check if a given value, let's say x, is a solution, we substitute x for t in the equation and if the equation holds true, then x is a solution. If x = 2.1, then the equation becomes 2.1 - 2.1 = 0, which is true. Therefore, the value 2.1 is a correct solution of the equation t - 2.1 = 0.