| ( | 4225186 | + | 93 10 | x | ) | ÷ | ( | 429369871 | + | 1043 | x | ) | − | ( | 3543753 | + | 87 10 | x | ) | ÷ | ( | 389296118 | + | 980 | x | ) | = | 0 |
| 方程两边同时乘以: | ( | 429369871 | + | 1043 | x | ) |
| ( | 4225186 | + | 93 10 | x | ) | − | ( | 3543753 | + | 87 10 | x | ) | ÷ | ( | 389296118 | + | 980 | x | ) | × | ( | 429369871 | + | 1043 | x | ) | = | 0 |
| 4225186 | + | 93 10 | x | − | ( | 3543753 | + | 87 10 | x | ) | ÷ | ( | 389296118 | + | 980 | x | ) | × | ( | 429369871 | + | 1043 | x | ) | = | 0 |
| 方程两边同时乘以: | ( | 389296118 | + | 980 | x | ) |
| 4225186 | ( | 389296118 | + | 980 | x | ) | + | 93 10 | x | ( | 389296118 | + | 980 | x | ) | − | ( | 3543753 | + | 87 10 | x | ) | ( | 429369871 | + | 1043 | x | ) | = | 0 |
| 4225186 | × | 389296118 | + | 4225186 | × | 980 | x | + | 93 10 | x | ( | 389296118 | + | 980 | x | ) | − | ( | 3543753 | + | 87 10 | x | ) | ( | 429369871 | + | 1043 | x | ) | = | 0 |