13283 100000 | ÷ | x | = | 1289 10000 | ÷ | 86289 100000 |
| 方程两边同时乘以: | x |
13283 100000 | = | 1289 10000 | ÷ | 86289 100000 | × | x |
1289 10000 | ÷ | 86289 100000 | × | x | = | 13283 100000 |
12890 86289 | x | = | 13283 100000 |
| x | = | 13283 100000 | ÷ | 12890 86289 |
| = | 13283 100000 | × | 86289 12890 |
| x | = | 1146176787 1289000000 |
| x | = | 0.889198 |