Write each of the following expressions without using absolute value. |z−7|−|z−9|, if z< 7

Using the definition of the absolute value function, it is found that the expression for z < 7 is:

The definition of the absolute value function is:

Then, for |z - 7|.

Then:

For |z - 9|.

Then:

Working with z < 7, we have that:

Then:

A similar problem is given at link

answer: b

step-by-step explanation: im sorry bro bro but thats not a eqation the human mind can answer and plus im a devil