1000 | = | ( | 15000 | + | ( | m | − | 500000 | ) | × | 3 200 | ) | × | 1 5 |
方程右边 = | 15000 | × | 1 5 | + | ( | m | − | 500000 | ) | × | 3 200 | × | 1 5 |
= | 3000 | + | ( | m | − | 500000 | ) | × | 3 1000 |
= | 3000 | + | m | × | 3 1000 | − | 500000 | × | 3 1000 |
= | 3000 | + | m | × | 3 1000 | − | 1500 |
= | 1500 | + | 3 1000 | m |
1000 | = | 1500 | + | 3 1000 | m |
- | 3 1000 | m | = | 1500 | − | 1000 |
- | 3 1000 | m | = | 500 |
- | 500 | = | 3 1000 | m |
3 1000 | m | = | - | 500 |
m | = | - | 500 | ÷ | 3 1000 |
= | - | 500 | × | 1000 3 |
m | = | - | 500000 3 |
m | = | - 166666.666667 |