What is the purpose of a chemical equation?

I don't remember all of the mathematical names, but I do remember that you need to balance equations so that both sides will be equal. These are very simple examples but they will show you that balanced equations are equivalentto being equal.

Such as: (2+2)=4=(3+1) Both sides equal '4'.

Differing equations on opposite sides of the equal sign demonstrate that are differing ways to express a certain figure.

Or: (2+6)-(3x1)=5=(2x2)+(4-3) Here both sides equal '5'.

(8) - (3) =5= (4) + (1)

Hope this helps.