( | 96 | + | x | ) | × | 3 10 | + | 96 | × | 7 10 | = | 478 5 |
方程左边 = | ( | 96 | + | x | ) | × | 3 10 | + | 336 5 |
( | 96 | + | x | ) | × | 3 10 | + | 336 5 | = | 478 5 |
方程左边 = | 96 | × | 3 10 | + | x | × | 3 10 | + | 336 5 |
= | 144 5 | + | x | × | 3 10 | + | 336 5 |
= | 96 | + | 3 10 | x |
96 | + | 3 10 | x | = | 478 5 |
3 10 | x | = | 478 5 | − | 96 |
3 10 | x | = | - | 2 5 |
x | = | - | 2 5 | ÷ | 3 10 |
= | - | 2 5 | × | 10 3 |
= | - | 2 | × | 2 3 |
x | = | - | 4 3 |
x | = | - 1.333333 |