In step one, you are supposed to add 25 to both sides, because if you just subtract, it would be -5x-50=53
Answer:
Yes, it is arithmetic with the common difference 2.
Step-by-step explanation:
10-8=2
8-6=2
6-4=2
etc.
53 and 17
Step-by-step explanation:
If you add 53 and 17, you get 70.
If you subtract 17 from 53, you get 36. Hope this helps!