| ( | 170 | + | x | ) | × | 309 500 | = | x |
| Left side of the equation = | 170 | × | 309 500 | + | x | × | 309 500 |
| = | 5253 50 | + | x | × | 309 500 |
5253 50 | + | 309 500 | x | = | x |
309 500 | x | − | x | = | - | 5253 50 |
| - | 191 500 | x | = | - | 5253 50 |
5253 50 | = | 191 500 | x |
191 500 | x | = | 5253 50 |
| x | = | 5253 50 | ÷ | 191 500 |
| = | 5253 50 | × | 500 191 |
| = | 5253 | × | 10 191 |
| x | = | 52530 191 |
| x | = | 275.026178 |