X | ÷ | ( | 2 25 | − | X | ) | × | ( | 3 | − | 2 | X | ) | ( | 3 | − | 2 | X | ) | = | 117 |
方程两边同时乘以: | ( | 2 25 | − | X | ) |
X | ( | 3 | − | 2 | X | ) | ( | 3 | − | 2 | X | ) | = | 117 | ( | 2 25 | − | X | ) |
X | × | 3 | ( | 3 | − | 2 | X | ) | − | X | × | 2 | X | ( | 3 | − | 2 | X | ) | = | 117 | ( | 2 25 | − | X | ) |
X | × | 3 | ( | 3 | − | 2 | X | ) | − | X | × | 2 | X | ( | 3 | − | 2 | X | ) | = | 117 | × | 2 25 | − | 117 | X |
X | × | 3 | ( | 3 | − | 2 | X | ) | − | X | × | 2 | X | ( | 3 | − | 2 | X | ) | = | 234 25 | − | 117 | X |
X | × | 3 | × | 3 | − | X | × | 3 | × | 2 | X | − | X | × | 2 | X | ( | 3 | − | 2 | X | ) | = | 234 25 | − | 117 | X |
X | × | 9 | − | X | × | 6 | X | − | X | × | 2 | X | ( | 3 | − | 2 | X | ) | = | 234 25 | − | 117 | X |
9 | X | − | X | × | 6 | X | − | X | × | 2 | X | × | 3 | + | X | × | 2 | X | = | 234 25 | − | 117 | X |
9 | X | − | X | × | 6 | X | − | X | × | 6 | X | + | X | × | 4 | X | X | = | 234 25 | − | 117 | X |