Lets do a simple two step equation
For example,
2x-8=12
Our main goal is to get the X value alone.
In order to do this, We will subtract 8 from both sides.
Our equation will now look like:
2x=20
In order to get the X alone here, We have to divide 2x by 2 in order to cancel out the 2 out. This means that since we divided by 2 on one side, we have to do it on the other.
Our equation now looks like:
x=10