| ( | 320988 25 | + | x | ) | × | 123 2500 | = | 4 | x |
| Left side of the equation = | 320988 25 | × | 123 2500 | + | x | × | 123 2500 |
| = | 9870381 15625 | + | x | × | 123 2500 |
9870381 15625 | + | 123 2500 | x | = | 4 | x |
123 2500 | x | − | 4 | x | = | - | 9870381 15625 |
| - | 9877 2500 | x | = | - | 9870381 15625 |
9870381 15625 | = | 9877 2500 | x |
9877 2500 | x | = | 9870381 15625 |
| x | = | 9870381 15625 | ÷ | 9877 2500 |
| = | 9870381 15625 | × | 2500 9877 |
| = | 9870381 25 | × | 4 9877 |
| x | = | 39481524 246925 |
| x | = | 159.892777 |