Question

∣
5
�
∣
=
∣5x∣=


15
15

Answer 1

x = -3 & 3

Explanation:

∣5xI = 15

divide both sides by 5:

(∣5xI)/5 = 15/5

∣xI = 3

I-3I = 3 AND I3I = 3

so:

x = -3 & 3