Balance the following equations:
`Mn_(2)O_(7)rarrMnO_(2)+O_(2)`

Explanation

To balance the equation `Mn₂O₇ → MnO₂ + O₂`, we will follow a systematic approach.

### Step-by-step solution:

1. **Identify the unbalanced equation**:
The unbalanced equation is:
\[
\text{Mn}_2\text{O}_7 \rightarrow \text{MnO}_2 + \text{O}_2
...