Question

-1< n+2 < 6
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a. -2 > n > 3
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b. -3 < n < 2
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c. -3 < n < 4
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d. 1 > n < 6
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The < means greater than/less than or equal to.
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@mathstudent55

Answer 1

In this inequality, there are 3 "sides."
The left side is -1
The middle side is n + 2
The right side is 6

Answer 2

Whatever you do to one side, you need to do to all 3 sides.
We have n + 2 in the middle. We want n alone. We need to subtract 2 from n + 2 to get n.
We subtract 2 from all three sides.