( | 300 | − | 4 | ÷ | 3 | × | m | ) | ( | 1 | + | 5 2 | × | m% | ) | = | 300 | ( | 1 | + | m% | ) |
方程左边 = | 300 | ( | 1 | + | 5 2 | × | m% | ) | − | 4 | ÷ | 3 | × | m | ( | 1 | + | 5 2 | × | m% | ) |
= | 300 | ( | 1 | + | 5 2 | × | m% | ) | − | 4 3 | m | ( | 1 | + | 5 2 | × | m% | ) |
= | 300 | × | 1 | + | 300 | × | 5 2 | × | m% | − | 4 3 | m | ( | 1 | + | 5 2 | × | m% | ) |
= | 300 | + | 15 2 | m | − | 4 3 | m | ( | 1 | + | 5 2 | × | m% | ) |
= | 300 | + | 15 2 | m | − | 4 3 | m | × | 1 | − | 4 3 | m | × | 5 2 | × | m% |
= | 300 | + | 15 2 | m | − | 4 3 | m | − | 1 30 | m | m |
= | 300 | + | 37 6 | m | − | 1 30 | m | m |
300 | + | 37 6 | m | − | 1 30 | m | m | = | 300 | ( | 1 | + | m% | ) |
方程右边 = | 300 | × | 1 | + | 300 | × | m% |
= | 300 | + | 3 | m |
300 | + | 37 6 | m | − | 1 30 | m | m | = | 300 | + | 3 | m |