( | ( | 220 | + | 220 | + | 260 | ) | × | 55 | − | x | ) | × | 9 10 | = | 118019 4 |
方程左边 = | ( | 220 | + | 220 | + | 260 | ) | × | 55 | × | 9 10 | − | x | × | 9 10 |
= | ( | 220 | + | 220 | + | 260 | ) | × | 99 2 | − | x | × | 9 10 |
= | 220 | × | 99 2 | + | 220 | × | 99 2 | + | 260 | × | 99 2 | − | 9 10 | x |
= | 10890 | + | 10890 | + | 12870 | − | 9 10 | x |
= | 34650 | − | 9 10 | x |
34650 | − | 9 10 | x | = | 118019 4 |
- | 9 10 | x | = | 118019 4 | − | 34650 |
- | 9 10 | x | = | - | 20581 4 |
20581 4 | = | 9 10 | x |
9 10 | x | = | 20581 4 |
x | = | 20581 4 | ÷ | 9 10 |
= | 20581 4 | × | 10 9 |
= | 20581 2 | × | 5 9 |
x | = | 102905 18 |
x | = | 5716.944444 |