( | X | − | 15554420711 100 | ) | ÷ | X | = | 2 25 |
方程两边同时乘以: | X |
( | X | − | 15554420711 100 | ) | = | 2 25 | X |
X | − | 15554420711 100 | = | 2 25 | X |
X | − | 2 25 | X | = | 15554420711 100 |
23 25 | X | = | 15554420711 100 |
X | = | 15554420711 100 | ÷ | 23 25 |
= | 15554420711 100 | × | 25 23 |
= | 15554420711 4 | × | 1 23 |
X | = | 15554420711 92 |