| m | m | + | 1 | + | 2 | m | + | 1 | ÷ | 9 | × | m | m | + | 1 | ÷ | 9 | + | 2 | = | 10 | ÷ | 9 |
| Left side of the equation = | m | m | + | 1 | + | 2 | m | + | 1 9 | m | m | + | 1 9 | + | 2 9 | m |
| = | m | m | + | 10 9 | + | 20 9 | m | + | 1 9 | m | m |
| m | m | + | 10 9 | + | 20 9 | m | + | 1 9 | m | m | = | 10 | ÷ | 9 |
| Right side of the equation = | 10 9 |
| m | m | + | 10 9 | + | 20 9 | m | + | 1 9 | m | m | = | 10 9 |