Question

Demarco substitutes a value for x in the equation 2x = 4.

How will Demarco know if the value is a solution of the equation

Pls help

Answer 1

If both sides are equal

Explanation:

If both sides are equal and are the same in both sides of the equation, than it is a solution.

For instance, the solution for 2x = 4, is x = 2 because 2(2) = 4 is 4 = 4.