Answer:
1. x = 2
2. x = 1
3. x = 1 and 2
Step-by-step explanation:
1. 2(2) + 5 = 9 --> 4 + 5 = 9 exactly. So, yes!
2(1) + 5 = 9 --> 2 + 5 does not = 9. So, no.
2(3) + 5 = 9 --> 6 +5 does not = 9. So, no.
2. 2(1) + 5 < 9 --> 2 + 5 = 7 < 9. So, yes!
2(2) + 5 < 9 --> 4 + 5 = 9 < 9. So, no.
2(3) + 5 < 9 --> 6 + 5 = 11 < 9. So, no.
3. 4(1) - 5 < 7 --> 4 - 5 = -1 < 7. So, yes!
4(2) - 5 < 7 --> 8 - 5 = 3 < 7. So, yes!
4(3) - 5 < 7 --> 12 - 5 = 7 < 7. So, no.
Hope this helps! :)
