Maybe this will help! (:
https://youtu.be/1wPJfzStBqE
Answer:
(10 - k) ÷ 5 = 9
(10 - 5) ÷ 5 = 9
5 ÷ 5 = 9
1 = 9
1 does not equal 9
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ANSWER
See below
EXPLANATION
Given

and



Expand:



Since the denominators are the same, they will cancel out,
