430,134 views
40 votes
40 votes
Please help!!! what is x: |6n+7|=8

User Kenta Nomoto
by
2.7k points

2 Answers

27 votes
27 votes

Answer:

-5/2, 1/6

Explanation:

|6n+7|=8

6n+7=8

n=1/6

6n+7=-8

n=-5/2

User Potench
by
3.1k points
12 votes
12 votes

Answer:


n=-(5)/(2) and
n=(1)/(6)

Explanation:

There is no x variable present in the question, but if you are asking for the value of n, I can help with that.

The absolute value function always results in a positive number, so that means 6n+7 can equal 8 or negative 8, and the absolute value function takes care of the rest. First, we will solve for 6n + 7 equaling 8.


6n+7=8

Subtracting 7 from both sides gets us


6n=1

Dividing by 6 from both sides is equal to


n=(1)/(6)

Now we will solve for 6n + 7 equaling negative 8.


6n+7=-8

Subtracting 7 from both sides is equal to


6n=-15

Dividing by 6 from both sides gets us


n=-(15)/(6)

Simplifying, we have


n=-(5)/(2)

User James Lemieux
by
2.3k points
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