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1 vote
8n+15=25 solve this what is n

User Fenny
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2 Answers

3 votes
Our goal is to isolate n. In order to do this, we must first get rid of the 15 on the left side of the equation.

To achieve this result, we must do the inverse of the operation on both sides of the equation. In other words, subtract 15 from both sides.

8n + 15 - 15 = 25 - 15

8n = 10

Now we must get rid of the 8, by again doing the inverse of the operation. Since 8 is multiplying n, we must divide it into both sides.

8n / 8 = 10 / 8

n = 1.25

Hopefully, this helps!
User Daremachine
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7.3k points
1 vote
8n+15=25, then you substract by 15 on both sides.

This leaves us with
8n=10

Then you divide by 8 on both sides
This leaves us with

n= 10/8 or 1.25
User Hans L
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7.7k points

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