3 5 | x | + | 7 5 | = | 13 5 | + | 3 10 | x |
3 5 | x | − | 3 10 | x | = | 13 5 | − | 7 5 |
3 10 | x | = | 13 5 | − | 7 5 |
3 10 | x | = | 6 5 |
| x | = | 6 5 | ÷ | 3 10 |
| = | 6 5 | × | 10 3 |
| = | 2 | × | 2 |
| x | = | 4 |
4 5 | x | − | 9 2 | = | 39 10 | + | 1 5 | x |
4 5 | x | − | 1 5 | x | = | 39 10 | + | 9 2 |
3 5 | x | = | 39 10 | + | 9 2 |
3 5 | x | = | 42 5 |
| x | = | 42 5 | ÷ | 3 5 |
| = | 42 5 | × | 5 3 |
| = | 14 | × | 1 |
| x | = | 14 |
| ( | x | − | 7 2 | ) | × | 4 5 | = | 28 5 |
| 方程左边 = | x | × | 4 5 | − | 7 2 | × | 4 5 |
| = | x | × | 4 5 | − | 14 5 |
4 5 | x | − | 14 5 | = | 28 5 |
4 5 | x | = | 28 5 | + | 14 5 |
4 5 | x | = | 42 5 |
| x | = | 42 5 | ÷ | 4 5 |
| = | 42 5 | × | 5 4 |
| = | 21 | × | 1 2 |
| x | = | 21 2 |
| x | = | 10.5 |
1 2 | x | + | 5 2 | = | 39 10 | + | 2 5 | x |
1 2 | x | − | 2 5 | x | = | 39 10 | − | 5 2 |
1 10 | x | = | 39 10 | − | 5 2 |
1 10 | x | = | 7 5 |
| x | = | 7 5 | ÷ | 1 10 |
| = | 7 5 | × | 10 |
| = | 7 | × | 2 |
| x | = | 14 |
1 10 | x | + | 2 5 | x | + | 27 10 | = | 77 10 |
| 方程左边 = | 1 2 | x | + | 27 10 |
1 2 | x | + | 27 10 | = | 77 10 |
1 2 | x | = | 77 10 | − | 27 10 |
1 2 | x | = | 5 |
| x | = | 5 | ÷ | 1 2 |
| = | 5 | × | 2 |
| x | = | 10 |
4 5 | x | + | 1 10 | x | − | 11 5 | = | 41 10 |
| 方程左边 = | 9 10 | x | − | 11 5 |
9 10 | x | − | 11 5 | = | 41 10 |
9 10 | x | = | 41 10 | + | 11 5 |
9 10 | x | = | 63 10 |
| x | = | 63 10 | ÷ | 9 10 |
| = | 63 10 | × | 10 9 |
| = | 7 | × | 1 |
| x | = | 7 |