( | 3141 20 | − | c | ) | × | 411 50 | = | ( | 1619 10 | − | c | ) | × | 401 50 |
方程左边 = | 3141 20 | × | 411 50 | − | c | × | 411 50 |
= | 1290951 1000 | − | c | × | 411 50 |
1290951 1000 | − | 411 50 | c | = | ( | 1619 10 | − | c | ) | × | 401 50 |
方程右边 = | 1619 10 | × | 401 50 | − | c | × | 401 50 |
= | 649219 500 | − | c | × | 401 50 |
1290951 1000 | − | 411 50 | c | = | 649219 500 | − | 401 50 | c |
- | 411 50 | c | + | 401 50 | c | = | 649219 500 | − | 1290951 1000 |
- | 1 5 | c | = | 649219 500 | − | 1290951 1000 |
- | 1 5 | c | = | 7487 1000 |
- | 7487 1000 | = | 1 5 | c |
1 5 | c | = | - | 7487 1000 |
c | = | - | 7487 1000 | ÷ | 1 5 |
= | - | 7487 1000 | × | 5 |
= | - | 7487 200 | × | 1 |
c | = | - | 7487 200 |
c | = | - 37.435 |