I don't want the answer, but I want to know how you got that answer. 4n + 5n + 15 = 5n + 7n The answer should be like this: X = Constant

asked Sep 8, 2021 105k views

0 votes

I don't want the answer, but I want to know how you got that answer.

4n + 5n + 15 = 5n + 7n

The answer should be like this: X = Constant

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4 votes

Answer:

n = 5

Explanation:

$4n+5n+15=5n+7n\\\\9n+15=12n\\\\9n+15-15=12n-15\\\\-3n=-15\\\\(-3n=-15)/(-3)\\\\ \boxed{n=5}$

Hope this helps.

Herr K answered Sep 14, 2021