117 10000 | ÷ | x | = | 1289 10000 | ÷ | 86289 100000 |
| Multiply both sides of the equation by: | x |
117 10000 | = | 1289 10000 | ÷ | 86289 100000 | × | x |
| - | 1289 10000 | ÷ | 86289 100000 | × | x | = | - | 117 10000 |
| - | 12890 86289 | x | = | - | 117 10000 |
117 10000 | = | 12890 86289 | x |
12890 86289 | x | = | 117 10000 |
| x | = | 117 10000 | ÷ | 12890 86289 |
| = | 117 10000 | × | 86289 12890 |
| x | = | 10095813 128900000 |
| x | = | 0.078323 |