00:01
In this question, i'm given the set s to contain these elements, minus 2, minus 1, 0, 1, 1, square root 2, 2, and 4.
00:13
Now, we want to see which elements in this set will satisfy this inequality.
00:23
Ok, let's get rid of the 7 first.
00:26
Let's minus 7 on every term.
00:35
On the left, i will have minus 13.
00:41
In the middle, you can see 7 minus 7 will cancel off, so i have minus x.
00:46
And on the right, i will have minus 1.
00:50
Now, let's multiply every term with minus 1.
00:57
When i multiply, divide inequality equations with negative numbers, i will have to switch sign...