Lesson 2-3 Check Skills You'll Need

1. 2n – 3n
   1. 5n
   2. –5n
   3. n
   4. –n
2. –4 + 3b + 2 + 5b
   1. 8b – 4
   2. 10b – 4
   3. 8b – 2
   4. 2b – 2
3. 9(w – 5)
   1. w – 45
   2. 9w – 45
   3. 9w – 5
   4. 9w – 54
4. –10(b – 12)
   1. –10b – 120
   2. 10b + 120
   3. –10b + 120
   4. 10b – 120
5. 3(–x + 4)
   1. 3x – 12
   2. –3x + 12
   3. –3x + 4
   4. 3x + 4
6. 5(6 – w)
   1. 30 – 5w
   2. 30 + 5w
   3. 5 – 5w
   4. 6 – 5w
Evaluate each expression.
7. 28 – a + 4a for a = 5
   1. 43
   2. 13
   3. 3
   4. 82
8. 8 + x – 7x for x = –3
   1. 29
   2. 26
   3. 34
   4. 31
9. (8n + 1)3 for n = –2
   1. –15
   2. 30
   3. –45
   4. –18
10. –(17 + 3y) for y = 6
    1. 35
    2. –35
    3. 40
    4. –40

Click the button to highlight the correct answers.