| ( | 249778607108963691 500000000000000 | + | x | ) | ÷ | x | = | 10 |
| 方程两边同时乘以: | x |
| ( | 249778607108963691 500000000000000 | + | x | ) | = | 10 | x |
249778607108963691 500000000000000 | + | x | = | 10 | x |
| x | − | 10 | x | = | - | 249778607108963691 500000000000000 |
| - | 9 | x | = | - | 249778607108963691 500000000000000 |
249778607108963691 500000000000000 | = | 9 | x |
| 9 | x | = | 249778607108963691 500000000000000 |
| x | = | 249778607108963691 500000000000000 | ÷ | 9 |
| = | 249778607108963691 500000000000000 | × | 1 9 |
| = | 83259535702987897 500000000000000 | × | 1 3 |
| x | = | 83259535702987897 1500000000000000 |