Here you go! Hope this helps
Answer:

Step-by-step explanation:
We are given with two equations
first equation is 
second equation is

we find the result of subtracting two equation
subtract the second equation from the first, so
first equation - second equation, multiply second equation by -1 and then add it with first equation


Now add both equations, we get

File a Form 1040-X to amend a tax return.
Answer:
-9.1 degrees at midnight
Step-by-step explanation:
15.1 - 24.2 = -9.1 degrees