X | ÷ | 4210 | + | ( | 36000 | X | - | 325500 | ) | = | 215000 |
方程左边 = | 1 4210 | X | + | 36000 | X | - | 325500 |
= | 151560001 4210 | X | - | 325500 |
151560001 4210 | X | - | 325500 | = | 215000 |
151560001 4210 | X | = | 215000 | + | 325500 |
151560001 4210 | X | = | 540500 |
X | = | 540500 | ÷ | 151560001 4210 |
= | 540500 | × | 4210 151560001 |
X | = | 2275505000 151560001 |
X | = | 15.013889 |