88 500 | = | 5 100 | + | 7 4 | × | 16 500 | + | x | × | 43 50 |
| Right side of the equation = | 5 100 | + | 7 125 | + | x | × | 43 50 |
| = | 53 500 | + | 43 50 | x |
88 500 | = | 53 500 | + | 43 50 | x |
| - | 43 50 | x | = | 53 500 | − | 88 500 |
| - | 43 50 | x | = | - | 7 100 |
7 100 | = | 43 50 | x |
43 50 | x | = | 7 100 |
| x | = | 7 100 | ÷ | 43 50 |
| = | 7 100 | × | 50 43 |
| = | 7 2 | × | 1 43 |
| x | = | 7 86 |
| x | = | 0.081395 |