100 100 | − | 15 100 | − | ( | ( | 1 | − | X | ) | ÷ | X | ) | × | 10 100 | ( | 1 | − | 400 | ÷ | 800 | ) | = | 0 |
100 100 | − | 15 100 | − | ( | 1 | − | X | ) | ÷ | X | × | 10 100 | ( | 1 | − | 400 | ÷ | 800 | ) | = | 0 |
17 20 | − | ( | 1 | − | X | ) | ÷ | X | × | 10 100 | ( | 1 | − | 400 | ÷ | 800 | ) | = | 0 |
| Multiply both sides of the equation by: | X |
17 20 | X | − | ( | 1 | − | X | ) | × | 10 100 | ( | 1 | − | 400 | ÷ | 800 | ) | = | 0 |
17 20 | X | − | 1 | × | 10 100 | ( | 1 | − | 400 | ÷ | 800 | ) | + | X | × | 10 100 | ( | 1 | − | 400 | ÷ | 800 | ) | = | 0 |
17 20 | X | − | 1 10 | ( | 1 | − | 400 | ÷ | 800 | ) | + | X | × | 10 100 | ( | 1 | − | 400 | ÷ | 800 | ) | = | 0 |
17 20 | X | − | 1 10 | × | 1 | + | 1 10 | × | 400 | ÷ | 800 | + | X | × | 10 100 | ( | 1 | − | 400 | ÷ | 800 | ) | = | 0 |
17 20 | X | − | 1 10 | + | 1 20 | + | X | × | 10 100 | ( | 1 | − | 400 | ÷ | 800 | ) | = | 0 |
17 20 | X | − | 1 20 | + | X | × | 10 100 | ( | 1 | − | 400 | ÷ | 800 | ) | = | 0 |
17 20 | X | − | 1 20 | + | X | × | 10 100 | × | 1 | − | X | × | 10 100 | × | 400 | ÷ | 800 | = | 0 |
17 20 | X | − | 1 20 | + | X | × | 1 10 | − | X | × | 1 20 | = | 0 |
9 10 | X | − | 1 20 | = | 0 |
9 10 | X | = | 0 | + | 1 20 |
9 10 | X | = | 1 20 |
| X | = | 1 20 | ÷ | 9 10 |
| = | 1 20 | × | 10 9 |
| = | 1 2 | × | 1 9 |
| X | = | 1 18 |
| X | = | 0.055556 |