| ( | 4 | + | m | ) | × | 128 | × | 6 | + | 2880 | = | 12 | × | 600 | + | 5760 |
| Left side of the equation = | ( | 4 | + | m | ) | × | 768 | + | 2880 |
| ( | 4 | + | m | ) | × | 768 | + | 2880 | = | 12 | × | 600 | + | 5760 |
| Left side of the equation = | 4 | × | 768 | + | m | × | 768 | + | 2880 |
| = | 3072 | + | m | × | 768 | + | 2880 |
| = | 5952 | + | 768 | m |
| 5952 | + | 768 | m | = | 12 | × | 600 | + | 5760 |
| Right side of the equation = | 7200 | + | 5760 |
| = | 12960 |
| 5952 | + | 768 | m | = | 12960 |
| 768 | m | = | 12960 | − | 5952 |
| 768 | m | = | 7008 |
| m | = | 7008 | ÷ | 768 |
| = | 7008 | × | 1 768 |
| = | 73 | × | 1 8 |
| m | = | 73 8 |
| m | = | 9.125 |