( | x | + | 48 5 | ) | × | 5 | ÷ | 8 | − | ( | 48 5 | − | 42 5 | ) | × | 5 | ÷ | 8 | = | 48 5 | × | 1 4 |
方程左边 = | ( | x | + | 48 5 | ) | × | 5 8 | − | ( | 48 5 | − | 42 5 | ) | × | 5 8 |
( | x | + | 48 5 | ) | × | 5 8 | − | ( | 48 5 | − | 42 5 | ) | × | 5 8 | = | 48 5 | × | 1 4 |
方程左边 = | x | × | 5 8 | + | 48 5 | × | 5 8 | − | ( | 48 5 | − | 42 5 | ) | × | 5 8 |
= | x | × | 5 8 | + | 6 | − | ( | 48 5 | − | 42 5 | ) | × | 5 8 |
= | 5 8 | x | + | 6 | − | 48 5 | × | 5 8 | + | 42 5 | × | 5 8 |
= | 5 8 | x | + | 6 | − | 6 | + | 21 4 |
= | 5 8 | x | + | 21 4 |
5 8 | x | + | 21 4 | = | 48 5 | × | 1 4 |
方程右边 = | 12 5 |
5 8 | x | + | 21 4 | = | 12 5 |
5 8 | x | = | 12 5 | − | 21 4 |
5 8 | x | = | - | 57 20 |
x | = | - | 57 20 | ÷ | 5 8 |
= | - | 57 20 | × | 8 5 |
= | - | 57 5 | × | 2 5 |
x | = | - | 114 25 |
x | = | - 4.56 |