Solution Found!
Prove that if n is a positive integer, then n is even if
Chapter 7, Problem 26E(choose chapter or problem)
QUESTION:
Problem 26E
Prove that if n is a positive integer, then n is even if and only if 7n + 4 is even.
Questions & Answers
QUESTION:
Problem 26E
Prove that if n is a positive integer, then n is even if and only if 7n + 4 is even.
ANSWER:
Solution:
Step1
Given that
n is positive even integer.
Step2
To find
We have to prove that if n is a positive integer, then n is even if and only if 7n + 4 is even.
Step3
Even, any whole number that can be exactly divided by 2.
Let n is even.
At that point