11800000 | + | x | ÷ | 109 100 | × | 9 100 | × | 28 25 | + | x | ÷ | 109 100 | × | 1 4 | + | x | ÷ | 109 100 | × | 3 100 | ÷ | 100 | = | x |
方程左边 = | 11800000 | + | x | × | 252 2725 | + | x | × | 25 109 | + | x | × | 3 10900 |
= | 11800000 | + | 3511 10900 | x |
11800000 | + | 3511 10900 | x | = | x |
3511 10900 | x | − | x | = | - | 11800000 |
- | 7389 10900 | x | = | - | 11800000 |
11800000 | = | 7389 10900 | x |
7389 10900 | x | = | 11800000 |
x | = | 11800000 | ÷ | 7389 10900 |
= | 11800000 | × | 10900 7389 |
x | = | 128620000000 7389 |