12860102321 62500000000 | x | ÷ | ( | 1 | − | 12860102321 62500000000 | x | ) | = | 1 4 |
| Multiply both sides of the equation by: | ( | 1 | − | 12860102321 62500000000 | x | ) |
12860102321 62500000000 | x | = | 1 4 | ( | 1 | − | 12860102321 62500000000 | x | ) |
12860102321 62500000000 | x | = | 1 4 | × | 1 | − | 1 4 | × | 12860102321 62500000000 | x |