1 | ÷ | x | + | 1 | ÷ | x | + | 2 | + | 1 | ÷ | x | + | 4 | = | 0 |
Multiply both sides of the equation by: | x |
1 | + | 1 | ÷ | 1 | × | 1 | + | 2 | x | + | 1 | ÷ | 1 | × | 1 | + | 4 | x | = | 0 |
2 | x | + | 4 | x | = | 0 | − | 1 | − | 1 | ÷ | 1 | × | 1 | − | 1 | ÷ | 1 | × | 1 |
2 | x | + | 4 | x | = | 0 | − | 1 | − | 1 | − | 1 |
6 | x | = | 0 | − | 1 | − | 1 | − | 1 |
6 | x | = | - | 3 |
x | = | - | 3 | ÷ | 6 |
= | - | 3 | × | 1 6 |
= | - | 1 | × | 1 2 |
x | = | - | 1 2 |
x | = | - 0.5 |