X | ÷ | 87 | − | 10 | ÷ | 500 | − | 20 | ÷ | 333 | = | 381 200000 | ( | X | + | 30 | ) |
方程左边 = | X | × | 1 87 | − | 1 50 | − | 20 333 |
= | 1 87 | X | − | 1333 16650 |
1 87 | X | − | 1333 16650 | = | 381 200000 | ( | X | + | 30 | ) |
方程右边 = | 381 200000 | X | + | 381 200000 | × | 30 |
= | 381 200000 | X | + | 1143 20000 |
1 87 | X | − | 1333 16650 | = | 381 200000 | X | + | 1143 20000 |
1 87 | X | − | 381 200000 | X | = | 1143 20000 | + | 1333 16650 |
166853 17400000 | X | = | 1143 20000 | + | 1333 16650 |
166853 17400000 | X | = | 913819 6660000 |
X | = | 913819 6660000 | ÷ | 166853 17400000 |
= | 913819 6660000 | × | 17400000 166853 |
= | 913819 111 | × | 290 166853 |
X | = | 265007510 18520683 |
X | = | 14.308733 |