X | − | X | × | 13 200 | − | ( | X | + | 25000 | ) | × | 3 10000 | = | 25000 |
方程左边 = | 187 200 | X | − | ( | X | + | 25000 | ) | × | 3 10000 |
187 200 | X | − | ( | X | + | 25000 | ) | × | 3 10000 | = | 25000 |
方程左边 = | 187 200 | X | − | X | × | 3 10000 | − | 25000 | × | 3 10000 |
= | 187 200 | X | − | X | × | 3 10000 | − | 15 2 |
= | 9347 10000 | X | − | 15 2 |
9347 10000 | X | − | 15 2 | = | 25000 |
9347 10000 | X | = | 25000 | + | 15 2 |
9347 10000 | X | = | 50015 2 |
X | = | 50015 2 | ÷ | 9347 10000 |
= | 50015 2 | × | 10000 9347 |
= | 50015 | × | 5000 9347 |
X | = | 250075000 9347 |
X | = | 26754.57366 |