Answer:
12.5ºF warmer
Step-by-step explanation:
So, we have -13.9 for January.
We have -1.4 for November.
-1.4+x=-13.9
x=-13.9+1.4
x=-12.5
It says warmer, so 12.5º warmer.
To check:
(Note: x is -12.5 because we got -12.5 for when we solved the equation)
-1.4-12.5=-13.9
-13.9=-13.9
True
