1 | + | 2 | ( | x | + | 3 | ) | = | 4 | + | 4 | ( | x | − | 6 | ) | − | 7 |
Left side of the equation = | 1 | + | 2 | x | + | 2 | × | 3 |
= | 1 | + | 2 | x | + | 6 |
= | 7 | + | 2 | x |
7 | + | 2 | x | = | 4 | + | 4 | ( | x | − | 6 | ) | − | 7 |
Right side of the equation = | - | 3 | + | 4 | ( | x | − | 6 | ) |
7 | + | 2 | x | = | - | 3 | + | 4 | ( | x | − | 6 | ) |
Right side of the equation = | - | 3 | + | 4 | x | − | 4 | × | 6 |
= | - | 3 | + | 4 | x | − | 24 |
= | - | 27 | + | 4 | x |
7 | + | 2 | x | = | - | 27 | + | 4 | x |
2 | x | − | 4 | x | = | - | 27 | − | 7 |
- | 2 | x | = | - | 27 | − | 7 |
- | 2 | x | = | - | 34 |
34 | = | 2 | x |
2 | x | = | 34 |
x | = | 34 | ÷ | 2 |
= | 34 | × | 1 2 |
= | 17 | × | 1 |
x | = | 17 |