15 | × | 7 | + | 192 | + | 7 | × | 91 5 | x | = | 11 10 | ( | 259 10 | + | 7 | x | ) | × | 10 |
方程左边 = | 105 | + | 192 | + | 637 5 | x |
= | 297 | + | 637 5 | x |
297 | + | 637 5 | x | = | 11 10 | ( | 259 10 | + | 7 | x | ) | × | 10 |
方程右边 = | 11 | ( | 259 10 | + | 7 | x | ) |
297 | + | 637 5 | x | = | 11 | ( | 259 10 | + | 7 | x | ) |
方程右边 = | 11 | × | 259 10 | + | 11 | × | 7 | x |
= | 2849 10 | + | 77 | x |
297 | + | 637 5 | x | = | 2849 10 | + | 77 | x |
637 5 | x | − | 77 | x | = | 2849 10 | − | 297 |
252 5 | x | = | 2849 10 | − | 297 |
252 5 | x | = | - | 121 10 |
x | = | - | 121 10 | ÷ | 252 5 |
= | - | 121 10 | × | 5 252 |
= | - | 121 2 | × | 1 252 |
x | = | - | 121 504 |
x | = | - 0.240079 |