Which number line represents the solution set for the inequality - 1 x 24?
+
-10
8
6
4
2
0 2
4
6
6 10
+
|
-10
-8
6
4
2
0
2
4
6
8
10
+
| -10 -8
6
4
-2
0 2
4
6
10

2

Ibelieve it is 5,040

So the first thing we do is to multiply the top equation by 3. the reason i want to do this is i notice there will be a 6y on both equations and can possibly add/subtract them. so we get 6y = -3x + 27. adding that and the second equation we get 6x = 27-15 which is 12. divide by 6 and we get 2. ∴ x = 2. substituting 2 into the first equation we get 2y = -2 + 9 which is 7. divide by 2 and we get 7/2. ∴ y = 7/2, x = 2.