Answer:
There are 8 markers in one pack
Explanation:
ok so x is going to be how many markers are in one package. if you have 3 packages then you will have 3x. you are adding 4 to 3x making it 3x+4. You know the total number of markers at the end so now all you have to do is solve the equation:
3x+4=28
3x=28-4
3x=24
x=24/3
x=8