Answer:
5
Step-by-step explanation:
(Sorry if this is wrong, I'm just assuming that the 30 divided by xx thing was a mistake and that you may have meant x)
Alright, so if we were to divide 30 by 6, then we'd get 5. That must mean dividing 30 by 5 would be 6.
To that next equation, we're basically subtracting 5 from 30, 6 times.
So that'd look like:
30-5=25
25-5=20
20-5=15
15-5=10
10-5=5
5-5=0
Which means that in both equations, plugging in 5 would bring the correct end results.
I hope this helped.
