I have a system of equations I don’t remember how to do :| I forgot how to solve this, and I forgot how to find the slope…

There are infinite numbers of solution.

Step-by-step explanation:

Solving the question and finding the final answer.

Here,

Now, from equation (i),

Now, putting the value of x in equation (ii)

This statement is true for all values of x and y.

So, there are infinite numbers of solution.