7200 | ÷ | x | = | ( | 7200 | × | 6 5 | ) | ÷ | 720 | - | 720 |
方程两边同时乘以: | x |
7200 | = | ( | 7200 | × | 6 5 | ) | ÷ | 720 | × | x | - | 720 | x |
7200 | = | 7200 | × | 6 5 | ÷ | 720 | × | x | - | 720 | x |
7200 | = | 12 | x | - | 720 | x |
7200 | = | - | 708 | x |
708 | x | = | - | 7200 |
x | = | - | 7200 | ÷ | 708 |
= | - | 7200 | × | 1 708 |
= | - | 600 | × | 1 59 |
x | = | - | 600 59 |
x | = | - 10.169492 |