15 100 | = | 5 100 | + | 13 10 | × | 4 100 | + | 3 5 | x |
| Right side of the equation = | 5 100 | + | 13 250 | + | 3 5 | x |
| = | 51 500 | + | 3 5 | x |
15 100 | = | 51 500 | + | 3 5 | x |
| - | 3 5 | x | = | 51 500 | − | 15 100 |
| - | 3 5 | x | = | - | 6 125 |
6 125 | = | 3 5 | x |
3 5 | x | = | 6 125 |
| x | = | 6 125 | ÷ | 3 5 |
| = | 6 125 | × | 5 3 |
| = | 2 25 | × | 1 |
| x | = | 2 25 |
| x | = | 0.08 |