Answer:
1.25
Step-by-step explanation:
You want the numbers to be on one side and the x to be on the other side.
To do this, you will add 16 to 4, this wll be 20
Now you have 16x=20, all you have to do is divide by x to get your number
so 20 divide by 16 is 1,25
1,25 is x
