1 100 | = | 10 | ( | 300 | + | x | ) | ÷ | ( | 10 | + | 300 | + | x | ) | − | 10 | × | 300 | ÷ | ( | 10 | + | 300 | ) |
| Multiply both sides of the equation by: | ( | 10 | + | 300 | + | x | ) |
1 100 | ( | 10 | + | 300 | + | x | ) | = | 10 | ( | 300 | + | x | ) | − | 10 | × | 300 | ÷ | ( | 10 | + | 300 | ) | × | ( | 10 | + | 300 | + | x | ) |
1 100 | × | 10 | + | 1 100 | × | 300 | + | 1 100 | x | = | 10 | ( | 300 | + | x | ) | − | 10 | × | 300 | ÷ | ( | 10 | + | 300 | ) | × | ( | 10 | + | 300 | + | x | ) |
1 100 | × | 10 | + | 1 100 | × | 300 | + | 1 100 | x | = | 10 | × | 300 | + | 10 | x | − | 10 | × | 300 | ÷ | ( | 10 | + | 300 | ) | × | ( | 10 | + | 300 | + | x | ) |
1 10 | + | 3 | + | 1 100 | x | = | 3000 | + | 10 | x | − | 3000 | ÷ | ( | 10 | + | 300 | ) | × | ( | 10 | + | 300 | + | x | ) |
31 10 | + | 1 100 | x | = | 3000 | + | 10 | x | − | 3000 | ÷ | ( | 10 | + | 300 | ) | × | ( | 10 | + | 300 | + | x | ) |
| Multiply both sides of the equation by: | ( | 10 | + | 300 | ) |
31 10 | ( | 10 | + | 300 | ) | + | 1 100 | x | ( | 10 | + | 300 | ) | = | 3000 | ( | 10 | + | 300 | ) | + | 10 | x | ( | 10 | + | 300 | ) | − | 3000 | ( | 10 | + | 300 | + | x | ) |
31 10 | × | 10 | + | 31 10 | × | 300 | + | 1 100 | x | ( | 10 | + | 300 | ) | = | 3000 | ( | 10 | + | 300 | ) | + | 10 | x | ( | 10 | + | 300 | ) | − | 3000 | ( | 10 | + | 300 | + | x | ) |
31 10 | × | 10 | + | 31 10 | × | 300 | + | 1 100 | x | ( | 10 | + | 300 | ) | = | 3000 | × | 10 | + | 3000 | × | 300 | + | 10 | x | ( | 10 | + | 300 | ) | − | 3000 | ( | 10 | + | 300 | + | x | ) |
| 31 | + | 930 | + | 1 100 | x | ( | 10 | + | 300 | ) | = | 30000 | + | 900000 | + | 10 | x | ( | 10 | + | 300 | ) | − | 3000 | ( | 10 | + | 300 | + | x | ) |
| 961 | + | 1 100 | x | ( | 10 | + | 300 | ) | = | 930000 | + | 10 | x | ( | 10 | + | 300 | ) | − | 3000 | ( | 10 | + | 300 | + | x | ) |
| 961 | + | 1 100 | x | × | 10 | + | 1 100 | x | × | 300 | = | 930000 | + | 10 | x | ( | 10 | + | 300 | ) | − | 3000 | ( | 10 | + | 300 | + | x | ) |
| 961 | + | 1 100 | x | × | 10 | + | 1 100 | x | × | 300 | = | 930000 | + | 10 | x | × | 10 | + | 10 | x | × | 300 | − | 3000 | ( | 10 | + | 300 | + | x | ) |
| 961 | + | 1 10 | x | + | 3 | x | = | 930000 | + | 100 | x | + | 3000 | x | − | 3000 | ( | 10 | + | 300 | + | x | ) |
| 961 | + | 31 10 | x | = | 930000 | + | 3100 | x | − | 3000 | ( | 10 | + | 300 | + | x | ) |
| 961 | + | 31 10 | x | = | 930000 | + | 3100 | x | − | 3000 | × | 10 | − | 3000 | × | 300 | − | 3000 | x |
| 961 | + | 31 10 | x | = | 930000 | + | 3100 | x | − | 30000 | − | 900000 | − | 3000 | x |
| 961 | + | 31 10 | x | = | 0 | + | 100 | x |
31 10 | x | − | 100 | x | = | - | 961 |
| - | 969 10 | x | = | - | 961 |
| 961 | = | 969 10 | x |
969 10 | x | = | 961 |
| x | = | 961 | ÷ | 969 10 |
| = | 961 | × | 10 969 |
| x | = | 9610 969 |
| x | = | 9.917441 |