Question

How do you solve and write the following in interval notation: `6<7/2a+(-8)`?

Answer 1

`a>4` and in interval notation, this is written as `(4,oo)`.

Explanation:

As `6<7/2a+(-8)`, we have

`6+8<7/2a` or

`7/2a>14` or

`a>14×2/7` or

`a>4` and in interval notation, it can be written as `(4,oo)`.