13 10 | x | + | 29 10 | ( | 22 | − | x | ) | = | 51 |
Left side of the equation = | 13 10 | x | + | 29 10 | × | 22 | − | 29 10 | x |
= | 13 10 | x | + | 319 5 | − | 29 10 | x |
= | - | 8 5 | x | + | 319 5 |
- | 8 5 | x | + | 319 5 | = | 51 |
- | 8 5 | x | = | 51 | − | 319 5 |
- | 8 5 | x | = | - | 64 5 |
64 5 | = | 8 5 | x |
8 5 | x | = | 64 5 |
x | = | 64 5 | ÷ | 8 5 |
= | 64 5 | × | 5 8 |
= | 8 | × | 1 |
x | = | 8 |