157 100 | × | 9 | ( | X | + | 300 | ) | + | 31 20 | × | 30 | ( | X | + | 200 | ) | + | 31 20 | × | 90 | ( | X | + | 100 | ) | + | 156 | × | 157 100 | X | = | 600000 |
方程左边 = | 1413 100 | ( | X | + | 300 | ) | + | 93 2 | ( | X | + | 200 | ) | + | 279 2 | ( | X | + | 100 | ) | + | 6123 25 | X |
1413 100 | ( | X | + | 300 | ) | + | 93 2 | ( | X | + | 200 | ) | + | 279 2 | ( | X | + | 100 | ) | + | 6123 25 | X | = | 600000 |
方程左边 = | 1413 100 | X | + | 1413 100 | × | 300 | + | 93 2 | ( | X | + | 200 | ) | + | 279 2 | ( | X | + | 100 | ) | + | 6123 25 | X |
= | 1413 100 | X | + | 4239 | + | 93 2 | ( | X | + | 200 | ) | + | 279 2 | ( | X | + | 100 | ) | + | 6123 25 | X |
= | 5181 20 | X | + | 4239 | + | 93 2 | ( | X | + | 200 | ) | + | 279 2 | ( | X | + | 100 | ) |
= | 5181 20 | X | + | 4239 | + | 93 2 | X | + | 93 2 | × | 200 | + | 279 2 | ( | X | + | 100 | ) |
= | 5181 20 | X | + | 4239 | + | 93 2 | X | + | 9300 | + | 279 2 | ( | X | + | 100 | ) |
= | 6111 20 | X | + | 13539 | + | 279 2 | ( | X | + | 100 | ) |
= | 6111 20 | X | + | 13539 | + | 279 2 | X | + | 279 2 | × | 100 |
= | 6111 20 | X | + | 13539 | + | 279 2 | X | + | 13950 |
= | 8901 20 | X | + | 27489 |
8901 20 | X | + | 27489 | = | 600000 |
8901 20 | X | = | 600000 | − | 27489 |
8901 20 | X | = | 572511 |
X | = | 572511 | ÷ | 8901 20 |
= | 572511 | × | 20 8901 |
= | 190837 | × | 20 2967 |
X | = | 3816740 2967 |
X | = | 1286.397034 |