EXAMPLES
1.
The solution of the equation 
=
–2 is
=
–2 is Sol:
| 2x | = | – 2(3x + 2) |
| 2x | = | – 6x – 4 |
| 2x + 6x | = | – 4 |
| 8x | = | – 4 |
| x | = | – 
|
2.
The value of x in 
is
is Sol:
| 2x | = | 3(1 + x) |
| 2x | = | 3 + 3x |
| 3x – 2x | = | –3 |
| x | = | –3 |
Ex 3:
If x = a – 1 find a from the equation 
Sol:
 |
||
 |
||
| Comparing the numerators | ||
| 4a – 8 – 12a – 15 | = | 1 |
| –8a – 23 | = | 1 |
| –8a | = | 24 |
| a | = | –3 |