Answer:

Step-by-step explanation:

DE :
If y is a solution of given DE then it satisfied the DE.
Differentiate w.r.t t

Using the formula

LHS:
RHS

By using the formula

LHS=RHs
Hence, y is a solution of given DE

Answer:
-a - 8
Step-by-step explanation:
2a - 5 - (3a + 3)
2a - 5 - 3a - 3
-a - 8
I hope this helps!
I don't think that you can. Integers are either positive or negative real numbers without decimals, so there isn't anything to simplify.