( | 9030 | − | x | ) | × | 3000 | × | 30 | ÷ | ( | x | × | 3000 | ) | × | 360 | = | 1 10 |
方程两边同时乘以: | ( | x | × | 3000 | ) |
( | 9030 | − | x | ) | × | 3000 | × | 30 | × | 360 | = | 1 10 | ( | x | × | 3000 | ) |
9030 | × | 3000 | × | 30 | × | 360 | − | x | × | 3000 | × | 30 | × | 360 | = | 1 10 | ( | x | × | 3000 | ) |
9030 | × | 3000 | × | 30 | × | 360 | − | x | × | 3000 | × | 30 | × | 360 | = | 1 10 | x | × | 3000 |