3 5 | x | + | 3 2 | = | 31 10 | + | 2 5 | x |
3 5 | x | − | 2 5 | x | = | 31 10 | − | 3 2 |
1 5 | x | = | 31 10 | − | 3 2 |
1 5 | x | = | 8 5 |
x | = | 8 5 | ÷ | 1 5 |
= | 8 5 | × | 5 |
= | 8 | × | 1 |
x | = | 8 |
7 10 | x | + | 4 5 | x | − | 22 5 | = | 91 10 |
方程左边 = | 3 2 | x | − | 22 5 |
3 2 | x | − | 22 5 | = | 91 10 |
3 2 | x | = | 91 10 | + | 22 5 |
3 2 | x | = | 27 2 |
x | = | 27 2 | ÷ | 3 2 |
= | 27 2 | × | 2 3 |
= | 9 | × | 1 |
x | = | 9 |
2 5 | x | + | 3 10 | x | + | 21 5 | = | 77 10 |
方程左边 = | 7 10 | x | + | 21 5 |
7 10 | x | + | 21 5 | = | 77 10 |
7 10 | x | = | 77 10 | − | 21 5 |
7 10 | x | = | 7 2 |
x | = | 7 2 | ÷ | 7 10 |
= | 7 2 | × | 10 7 |
= | 1 | × | 5 |
x | = | 5 |
7 10 | x | + | 37 10 | = | 26 5 | + | 1 5 | x |
7 10 | x | − | 1 5 | x | = | 26 5 | − | 37 10 |
1 2 | x | = | 26 5 | − | 37 10 |
1 2 | x | = | 3 2 |
x | = | 3 2 | ÷ | 1 2 |
= | 3 2 | × | 2 |
= | 3 | × | 1 |
x | = | 3 |
2 5 | x | + | 9 10 | x | − | 2 | = | 19 10 |
方程左边 = | 13 10 | x | − | 2 |
13 10 | x | − | 2 | = | 19 10 |
13 10 | x | = | 19 10 | + | 2 |
13 10 | x | = | 39 10 |
x | = | 39 10 | ÷ | 13 10 |
= | 39 10 | × | 10 13 |
= | 3 | × | 1 |
x | = | 3 |
9 10 | x | + | 3 | = | 8 | + | 2 5 | x |
9 10 | x | − | 2 5 | x | = | 8 | − | 3 |
1 2 | x | = | 8 | − | 3 |
1 2 | x | = | 5 |
x | = | 5 | ÷ | 1 2 |
= | 5 | × | 2 |
x | = | 10 |