Answer with Step-by-step explanation:
Since we have given that
a + b = c
and a|c
i.e. a divides c.
We need to prove that a|b.
⇒ a = mb for some integer m
Since a|c,
So, mathematically, it is expressed as
c= ka
Now, we put the above value in a + b = c.
So, it becomes,
a=mb, here, m = k-1
Hence, proved.
I think it is -10 i hope this helps
Answer: 43.5
Step-by-step explanation:
7 is the right answer(please rate 5.0 stars so i can help other people out thanks)