| ( | x | + | 430 | × | 7 | ) | × | 82000 | + | 7 10 | = | 15 |
| Left side of the equation = | x | × | 82000 | + | 430 | × | 7 | × | 82000 | + | 7 10 |
| = | x | × | 82000 | + | 246820000 | + | 7 10 |
| = | 82000 | x | + | 2468200007 10 |
| 82000 | x | + | 2468200007 10 | = | 15 |
| 82000 | x | = | 15 | − | 2468200007 10 |
| 82000 | x | = | - | 2468199857 10 |
| x | = | - | 2468199857 10 | ÷ | 82000 |
| = | - | 2468199857 10 | × | 1 82000 |
| x | = | - | 2468199857 820000 |
| x | = | - 3009.999826 |