I know with a dependent clause in front of the sentence, then an independent clause separated by a conjunction I use a comma. If u have two independent clauses with a conjunction do I use a comma.

Example

The class will take a trip when school is over.

It seems the more I read on it the more confused I get.

No comma is needed.

You wrote this: "If u have two independent clauses with a conjunction do I use a comma."

Then you wrote this: "It seems the more I read on it the more confused I get."

That sentence doesn't match the description you gave. Did you intend them to match? Or not?

Yes, when you have two independent clauses separated by a conjunction, you should use a comma before the conjunction. This comma is known as a "comma before the coordinating conjunction" or a "comma before the FANBOYS (For, And, Nor, But, Or, Yet, So)." It helps to clarify the separation between the two independent clauses.

In your example, "The class will take a trip" is the first independent clause, and "when school is over" is the dependent clause. The dependent clause provides additional information about the timing or condition of the main clause.

To form two independent clauses, you would need to rephrase the sentence like this:

"The class will take a trip, and school will be over."

Here, "The class will take a trip" and "school will be over" are two separate independent clauses joined by the coordinating conjunction "and." In this case, a comma is necessary before the conjunction "and" to indicate the separation between the two clauses.