2 | ( | x | + | 5 | ) | = | 50 | + | 442 5 | + | 242 | − | 2 | x |
方程左边 = | 2 | x | + | 2 | × | 5 |
= | 2 | x | + | 10 |
2 | x | + | 10 | = | 50 | + | 442 5 | + | 242 | − | 2 | x |
方程右边 = | 1902 5 | − | 2 | x |
2 | x | + | 10 | = | 1902 5 | − | 2 | x |
2 | x | + | 2 | x | = | 1902 5 | − | 10 |
4 | x | = | 1902 5 | − | 10 |
4 | x | = | 1852 5 |
x | = | 1852 5 | ÷ | 4 |
= | 1852 5 | × | 1 4 |
= | 463 5 | × | 1 |
x | = | 463 5 |
x | = | 92.6 |