Question

( THIS COULD BE A QUICK ONE ! )

Amy solved the inequality and was asked to express her answer in set notation. Determine if she
made a mistake, correct the mistake if she made one and create the correct expression in set notation.

-X-7>-6

X> 1

(1, ∞ )

Answer 1

x<-1

x€(-∞,-1)

Explanation:

Yes she made mistake

Here's the correction

Answer 2

Explanation:

-X - 7 > -6

-7 > X - 6

X < -1

Hence the answer in set notation is (-∞, -1).