The Best Algebra Equation Ever

If A brings B to C's house, then A+B+C = Family.
When A and B and C are together and D joins in the sum = Family.
Sometimes A, B, C, and D are together and D invites E and F and then B invites G.  Altogether A+B+C+D+E+F+G= Family.

This is my circle and I love it.
My family accepts my friends as family.
My family's friends accept me as family.
My friends accept my family as family.
My friends accept my family's friends as family.

Got it?
I hope you do.
If you get it, it is likely because you are encircled by this same alphabetical equation too.