( | 1 | ÷ | 7 10 | ) | x | − | 1 | ÷ | 3 100 | × | ( | 17 100 | − | 1 5 | x | ) | = | 1 |
方程左边 = | ( | 1 | ÷ | 7 10 | ) | x | − | 100 3 | ( | 17 100 | − | 1 5 | x | ) |
( | 1 | ÷ | 7 10 | ) | x | − | 100 3 | ( | 17 100 | − | 1 5 | x | ) | = | 1 |
方程左边 = | 1 | ÷ | 7 10 | × | x | − | 100 3 | ( | 17 100 | − | 1 5 | x | ) |
= | 10 7 | x | − | 100 3 | ( | 17 100 | − | 1 5 | x | ) |
= | 10 7 | x | − | 100 3 | × | 17 100 | + | 100 3 | × | 1 5 | x |
= | 10 7 | x | − | 17 3 | + | 20 3 | x |
= | 170 21 | x | − | 17 3 |
170 21 | x | − | 17 3 | = | 1 |
170 21 | x | = | 1 | + | 17 3 |
170 21 | x | = | 20 3 |
x | = | 20 3 | ÷ | 170 21 |
= | 20 3 | × | 21 170 |
= | 2 | × | 7 17 |
x | = | 14 17 |
x | = | 0.823529 |