The first thing to do is to bring all the variables on a side, and all the numbers on another side by subtracting and adding numbers and variables. When you get the variable on a side and a number on the other side, you divide both sides by the coefficient of the variable (For example, in 5x, 5 is the coefficient of the variable x), so you can get the variable alone on a side, and its value on the other side.
For example, let's solve the equation 4x - 3 = 2x - 2
First thing to do is to bring the variables on a side, and the numbers on the other:
4x - 3 = 2x - 2
First we subtract 2x then add 3 on both sides:
4x - 3 + 3 - 2x = 2x - 2 -2x + 3
4x - 2x = -2 + 3
Then we calculate to get one variable and one number:
2x = 1
Divide both sides by 2 (the coefficient of the variable):
(2x)/2 = 1/2
x = 1/2
Hope this Helps! :)