2834 5 | + | ( | 1054 | − | 2834 5 | ) | ( | X | − | 20000 | ) | ÷ | ( | 40000 | − | 20000 | ) | = | 88668407 100000 |
方程两边同时乘以: | ( | 40000 | − | 20000 | ) |
2834 5 | ( | 40000 | − | 20000 | ) | + | ( | 1054 | − | 2834 5 | ) | ( | X | − | 20000 | ) | = | 88668407 100000 | ( | 40000 | − | 20000 | ) |
2834 5 | × | 40000 | − | 2834 5 | × | 20000 | + | ( | 1054 | − | 2834 5 | ) | ( | X | − | 20000 | ) | = | 88668407 100000 | ( | 40000 | − | 20000 | ) |
2834 5 | × | 40000 | − | 2834 5 | × | 20000 | + | ( | 1054 | − | 2834 5 | ) | ( | X | − | 20000 | ) | = | 88668407 100000 | × | 40000 | − | 88668407 100000 | × | 20000 |