( | 2 | y | − | 1 | ) | ÷ | 4 | = | 1 | − | ( | 3 | − | y | ) | ÷ | 8 |
方程左边 = | 2 | y | × | 1 4 | − | 1 | × | 1 4 |
= | 1 2 | y | − | 1 4 |
1 2 | y | − | 1 4 | = | 1 | − | ( | 3 | − | y | ) | ÷ | 8 |
方程右边 = | 1 | − | 3 | × | 1 8 | + | y | × | 1 8 |
= | 1 | − | 3 8 | + | y | × | 1 8 |
= | 5 8 | + | 1 8 | y |
1 2 | y | − | 1 4 | = | 5 8 | + | 1 8 | y |
1 2 | y | − | 1 8 | y | = | 5 8 | + | 1 4 |
3 8 | y | = | 5 8 | + | 1 4 |
3 8 | y | = | 7 8 |
y | = | 7 8 | ÷ | 3 8 |
= | 7 8 | × | 8 3 |
= | 7 | × | 1 3 |
y | = | 7 3 |
y | = | 2.333333 |