Answer:
You have no picture or anything to show where is x in a math equation but...
Step-by-step explanation:
X is used in math when you have to find the number for example
20 =4 (2+X)
As you can see the X is added by 2 multipled by 4 and it equals 20 what is X?
X is 3 as you can see... 2+3=5*4=20
Hope i helped have a good day!!!