M = - 3
16m - 12 - m + 5 = - 52
16m - m = - 52 + 12 - 5
15m = - 45
m = - 45/15
m = - 3 ✔️
Explanation:
I think it is underground and fresh water
If it's really cold where you are going to build you will have to insulate the house very well and the same goes for if it's really hot.
