43 100000000 | ( | 1 10 | − | x | ) | = | x | × | 2 |
| 方程左边 = | 43 100000000 | × | 1 10 | − | 43 100000000 | x |
| = | 43 1000000000 | − | 43 100000000 | x |
43 1000000000 | − | 43 100000000 | x | = | x | × | 2 |
| - | 43 100000000 | x | − | 2 | x | = | - | 43 1000000000 |
| - | 200000043 100000000 | x | = | - | 43 1000000000 |
43 1000000000 | = | 200000043 100000000 | x |
200000043 100000000 | x | = | 43 1000000000 |
| x | = | 43 1000000000 | ÷ | 200000043 100000000 |
| = | 43 1000000000 | × | 100000000 200000043 |
| = | 43 10 | × | 1 200000043 |
| x | = | 43 2000000430 |
| x | = | 0 |