100 | × | 29 10 | + | x | × | 41 | = | ( | 100 | + | x | ) | × | 25 |
方程左边 = | 290 | + | x | × | 41 |
290 | + | 41 | x | = | ( | 100 | + | x | ) | × | 25 |
方程右边 = | 100 | × | 25 | + | x | × | 25 |
= | 2500 | + | x | × | 25 |
290 | + | 41 | x | = | 2500 | + | 25 | x |
41 | x | − | 25 | x | = | 2500 | − | 290 |
16 | x | = | 2500 | − | 290 |
16 | x | = | 2210 |
x | = | 2210 | ÷ | 16 |
= | 2210 | × | 1 16 |
= | 1105 | × | 1 8 |
x | = | 1105 8 |
x | = | 138.125 |