Let's solve each expression in
Part 1 by combining like terms. Like terms are terms that have the same variable raised to the same power. We'll add or subtract their coefficients.
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1. $ 4f + 9f + 9f + 2f + 9f $
Add all the coefficients of $ f $:
$$
4 + 9 + 9 + 2 + 9 = 33
$$
So, $ 33f $
✔ Answer: $ 33f $
---
2. $ 4u + 7u + 8u - 8u + 4u $
Add the coefficients:
$$
4 + 7 + 8 - 8 + 4 = 15
$$
So, $ 15u $
✔ Answer: $ 15u $
---
3. $ -8i + 7i - 7i + 7i $
Add the coefficients:
$$
-8 + 7 - 7 + 7 = -1
$$
So, $ -i $
✔ Answer: $ -i $
---
4. $ 7l - 3l + 3l $
$$
7 - 3 + 3 = 7
$$
So, $ 7l $
✔ Answer: $ 7l $
---
5. $ 8t + 5t - 7t - 4t - 8t $
Add the coefficients:
$$
8 + 5 - 7 - 4 - 8 = (13) - (19) = -6
$$
So, $ -6t $
✔ Answer: $ -6t $
---
6. $ -5e + 4e + 9e + 2e - 3e $
Add the coefficients:
$$
-5 + 4 + 9 + 2 - 3 = (-5 - 3) + (4 + 9 + 2) = -8 + 15 = 7
$$
So, $ 7e $
✔ Answer: $ 7e $
---
7. $ -6y - 7y + 9y + 4y $
Add the coefficients:
$$
-6 - 7 + 9 + 4 = (-13) + 13 = 0
$$
So, $ 0 $
✔ Answer: $ 0 $
---
8. $ 4c + 6c + 4c $
$$
4 + 6 + 4 = 14
$$
So, $ 14c $
✔ Answer: $ 14c $
---
9. $ 5j + 5j + 6j - 8j + 4j $
$$
5 + 5 + 6 - 8 + 4 = (16) - 8 = 8
$$
So, $ 8j $
✔ Answer: $ 8j $
---
10. $ 2b - 10b - 4b + 9b + 2b $
$$
2 - 10 - 4 + 9 + 2 = (2 + 9 + 2) - (10 + 4) = 13 - 14 = -1
$$
So, $ -b $
✔ Answer: $ -b $
---
11. $ 10t - 4t $
$$
10 - 4 = 6
$$
So, $ 6t $
✔ Answer: $ 6t $
---
12. $ -5p + 3p $
$$
-5 + 3 = -2
$$
So, $ -2p $
✔ Answer: $ -2p $
---
13. $ -9w - 6w $
$$
-9 - 6 = -15
$$
So, $ -15w $
✔ Answer: $ -15w $
---
14. $ 8h + 9h - 10h $
$$
8 + 9 - 10 = 7
$$
So, $ 7h $
✔ Answer: $ 7h $
---
✔ Final Answers:
1. $ 33f $
2. $ 15u $
3. $ -i $
4. $ 7l $
5. $ -6t $
6. $ 7e $
7. $ 0 $
8. $ 14c $
9. $ 8j $
10. $ -b $
11. $ 6t $
12. $ -2p $
13. $ -15w $
14. $ 7h $
Let me know if you'd like these explained step-by-step with visual grouping!
Parent Tip: Review the logic above to help your child master the concept of collecting like terms worksheet.