87129 1000000 | = | 53999 25 | − | ( | 593739 500 | + | ( | 79887 100 | − | x | ) | ) | ÷ | ( | 593739 500 | + | ( | 79887 100 | − | x | ) | ) |
| 方程两边同时乘以: | ( | 593739 500 | + | ( | 79887 100 | − | x | ) | ) |
87129 1000000 | ( | 593739 500 | + | ( | 79887 100 | − | x | ) | ) | = | 53999 25 | ( | 593739 500 | + | ( | 79887 100 | − | x | ) | ) | − | ( | 593739 500 | + | ( | 79887 100 | − | x | ) | ) |
87129 1000000 | × | 593739 500 | + | 87129 1000000 | ( | 79887 100 | − | x | ) | = | 53999 25 | ( | 593739 500 | + | ( | 79887 100 | − | x | ) | ) | − | ( | 593739 500 | + | ( | 79887 100 | − | x | ) | ) |
87129 1000000 | × | 593739 500 | + | 87129 1000000 | ( | 79887 100 | − | x | ) | = | 53999 25 | × | 593739 500 | + | 53999 25 | ( | 79887 100 | − | x | ) | − | ( | 593739 500 | + | ( | 79887 100 | − | x | ) | ) |