( | 3141 20 | − | c | ) | × | 411 50 | = | ( | 1619 10 | − | c | ) | × | 803 100 |
方程左边 = | 3141 20 | × | 411 50 | − | c | × | 411 50 |
= | 1290951 1000 | − | c | × | 411 50 |
1290951 1000 | − | 411 50 | c | = | ( | 1619 10 | − | c | ) | × | 803 100 |
方程右边 = | 1619 10 | × | 803 100 | − | c | × | 803 100 |
= | 1300057 1000 | − | c | × | 803 100 |
1290951 1000 | − | 411 50 | c | = | 1300057 1000 | − | 803 100 | c |
- | 411 50 | c | + | 803 100 | c | = | 1300057 1000 | − | 1290951 1000 |
- | 19 100 | c | = | 1300057 1000 | − | 1290951 1000 |
- | 19 100 | c | = | 4553 500 |
- | 4553 500 | = | 19 100 | c |
19 100 | c | = | - | 4553 500 |
c | = | - | 4553 500 | ÷ | 19 100 |
= | - | 4553 500 | × | 100 19 |
= | - | 4553 5 | × | 1 19 |
c | = | - | 4553 95 |
c | = | - 47.926316 |