Quick Question on How to solve Free Energy?

Question

I am a little confused on the basic equation of the free energy and I was wondering what the equation is and if someone could complete this example or solve one for me real quick in order for me to understand the others I would greatly appreciate anyone's help!

Problem:
Change in H = +25KJ Change in S = 5.0 J/K T = 300K
Calculate the Free Energy

Answer 1

Change in Free Energy= Change in Total Energy (H) - T x Change in Entropy (S)

Change in free energy = 25000J - 300(5)= 23500

i think that's it