How does one balance an equation?

To make both sides of an equation equal, multiply the number of atoms in each element until both sides are equal.

Explanation:

The chemical equation is an equation in which the number of atoms of each element on the product side is equal to the number of atoms of each element on the reactant side. To make both sides of an equation equal, multiply the number of atoms in each of the elements on both the sides until both the sides become equal.