200 | − | ( | 15 100 | − | X | ) | = | 100 | − | ( | X | − | 10 100 | ) |
Left side of the equation = | 200 | − | 15 100 | + | X |
= | 3997 20 | + | X |
3997 20 | + | X | = | 100 | − | ( | X | − | 10 100 | ) |
Right side of the equation = | 100 | − | X | + | 10 100 |
= | 1001 10 | − | X |
3997 20 | + | X | = | 1001 10 | − | X |
X | + | X | = | 1001 10 | − | 3997 20 |
2 | X | = | 1001 10 | − | 3997 20 |
2 | X | = | - | 399 4 |
X | = | - | 399 4 | ÷ | 2 |
= | - | 399 4 | × | 1 2 |
X | = | - | 399 8 |
X | = | - 49.875 |