Question

What is a Equilibrium

Answer 1

An equilibrium is the point at which any two opposing things are balanced or equal.

Think of a tug of war competition. You could think of equilibrium as the point at which neither side is moving and their pulling force is equal.

Another example could be the state of mind. Equilibrium, when referring to the state of mind or emotional status, is when everything seems to be calm and there are no worries or stressors on your mind and everything seems alright.

One final example will be a math example. According to math, equilibrium is when the solution does not change even if the equation does. For example:

2+2 = 4
3+1 = 4
7-3  = 4

These equations are in equilibrium. 

Although I gave three different examples, I am most sure that the answer and example that you were looking for would be along with the first example.

Anyways :P Thanks for the question! I hope this helped! Have an amazing day :D

Answer 2

Basically,  physical balance(s) of something. That's what i was taught.