79261 10 | = | ( | 440 | × | 21 | − | x | ) | × | 9 10 | + | 40 | × | 21 |
方程右边 = | ( | 440 | × | 21 | − | x | ) | × | 9 10 | + | 840 |
79261 10 | = | ( | 440 | × | 21 | − | x | ) | × | 9 10 | + | 840 |
方程右边 = | 440 | × | 21 | × | 9 10 | − | x | × | 9 10 | + | 840 |
= | 8316 | − | x | × | 9 10 | + | 840 |
= | 9156 | − | 9 10 | x |
79261 10 | = | 9156 | − | 9 10 | x |
9 10 | x | = | 9156 | − | 79261 10 |
9 10 | x | = | 12299 10 |
x | = | 12299 10 | ÷ | 9 10 |
= | 12299 10 | × | 10 9 |
= | 12299 | × | 1 9 |
x | = | 12299 9 |
x | = | 1366.555556 |