Question

C is a number such c absolute value plus 5 equally’s 9. How many possible values so c are there?

Answer 1

Assuming the equation is

$|c|+5=9$

you can subtract 5 from both sides to get

$|c| = 4$

Which means that the "positive version" of c has to be 4.

So, if c is positive, it must be 4 itself.

If c negative, it must be -4, so that when you change its sign it becomes 4 again.

So, the answer is $c = \pm 4$