What are the steps ,in the correct order to write and solve eqautions

The answer for a two step equation is :
for example : 2x - 4= 28 
1. you add 4 to 28 > 2x= 28 + 4 
2. once you get the answer from the first step you divide   it by two > 32 / 2 = 16
3. so x is 16 > x= 16

hope this