How do you solve the equation for a in the equation 2a = 4?

To solve the equation 2a = 4, you need to isolate the variable a. Here are the steps to do that:

1. Start with the equation: 2a = 4.
2. To isolate a, divide both sides of the equation by 2: a = 4 / 2.
3. Now perform the division: a = 2.

So the solution to the equation 2a = 4 is a = 2.