6 | x | + | 4 | ( | 2 | x | − | 1 | ) | + | 3 | ( | 44 | − | x | − | 2 | x | − | 1 | ) | = | 171 |
方程左边 = | 6 | x | + | 4 | × | 2 | x | − | 4 | × | 1 | + | 3 | ( | 44 | − | x | − | 2 | x | − | 1 | ) |
= | 6 | x | + | 8 | x | − | 4 | + | 3 | ( | 44 | − | x | − | 2 | x | − | 1 | ) |
= | 14 | x | − | 4 | + | 3 | ( | 44 | − | x | − | 2 | x | − | 1 | ) |
= | 14 | x | − | 4 | + | 3 | × | 44 | − | 3 | x | − | 3 | × | 2 | x | − | 3 | × | 1 |
= | 14 | x | − | 4 | + | 132 | − | 3 | x | − | 6 | x | − | 3 |
= | 5 | x | + | 125 |
5 | x | + | 125 | = | 171 |
5 | x | = | 171 | − | 125 |
5 | x | = | 46 |
x | = | 46 | ÷ | 5 |
= | 46 | × | 1 5 |
x | = | 46 5 |
x | = | 9.2 |