# Question #23a85

##### 1 Answer

Oct 6, 2016

#### Explanation:

An absolute value inequality holds when a certain variable is bounded symmetrically with respect to zero, i.e. it ranges from

For example. if you have

In your case, we need to subtract from all members a certain quantity, so that the foretold symmetry holds.

For example, if we subtract

From here, we can see that we need to subtract