157 100 | × | 9 | ( | X | ) | + | 31 20 | × | 30 | × | 1600 | + | 31 20 | × | 90 | × | 1400 | + | 156 | × | 157 100 | × | 1200 | = | 600000 |
方程左边 = | 1413 100 | ( | X | ) | + | 74400 | + | 195300 | + | 293904 |
= | 1413 100 | ( | X | ) | + | 563604 |
1413 100 | ( | X | ) | + | 563604 | = | 600000 |
方程左边 = | 1413 100 | X | + | 563604 |
1413 100 | X | + | 563604 | = | 600000 |
1413 100 | X | = | 600000 | − | 563604 |
1413 100 | X | = | 36396 |
X | = | 36396 | ÷ | 1413 100 |
= | 36396 | × | 100 1413 |
= | 4044 | × | 100 157 |
X | = | 404400 157 |
X | = | 2575.796178 |