X | = | 80899 | ( | 1 | − | 140385 | ÷ | ( | 140385 | + | X | ) | ) | ÷ | ( | 2918076 | − | 446531 | ÷ | ( | 140385 | + | X | ) | ) |
方程两边同时乘以: | ( | 2918076 | − | 446531 | ÷ | ( | 140385 | + | X | ) | ) |
X | ( | 2918076 | − | 446531 | ÷ | ( | 140385 | + | X | ) | ) | = | 80899 | ( | 1 | − | 140385 | ÷ | ( | 140385 | + | X | ) | ) |
X | × | 2918076 | − | X | × | 446531 | ÷ | ( | 140385 | + | X | ) | = | 80899 | ( | 1 | − | 140385 | ÷ | ( | 140385 | + | X | ) | ) |
X | × | 2918076 | − | X | × | 446531 | ÷ | ( | 140385 | + | X | ) | = | 80899 | × | 1 | − | 80899 | × | 140385 | ÷ | ( | 140385 | + | X | ) |