bl^2 + (-bl) + ankk- K
———————————— = 1/2 blank
2
[spoiler]Let’s say with idea of a step sibling or parent that they’re like half of your family tree. They are there, but biologically they aren’t supposed to be in the tree. Maybe like the inhabitants of the tree? So that being said, let’s say that 1/2 in that equation represent the word “step” that goes in front of a step-sister.
Now, in your last stated equation you’ve given the mathematical term for my mom (that being bla - nk = my mom, of course). With my equation combined with your work, we’ve managed to ascend further to greatness with the equation for your step-mom. We’re mathematical geniuses my friend.[/spoiler]