50+ algebra worksheets for 9th Grade on Quizizz | Free & Printable - Free Printable

Since the user options (ExplainAnswer, TeachTopic, GeneratePractice) are all set to false, I will only provide the final answers for each question, as per the response format rules.

However, to ensure accuracy, I will first solve each problem step by step.

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Question 1: 3 + 2³ - 8

Step 1: Calculate 2³ = 8
Step 2: 3 + 8 = 11
Step 3: 11 - 8 = 3
✔ Final Answer: D. 3

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Question 2: 6x - 2 - 7x + 4 - x

Step 1: Combine like terms for x: 6x - 7x - x = -2x
Step 2: Combine constants: -2 + 4 = +2
Result: -2x + 2
✔ Final Answer: A. -2x + 2

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Question 3: -3(x - 3) + 6(x + 1)

Step 1: Distribute -3 → -3x + 9
Step 2: Distribute 6 → 6x + 6
Step 3: Combine: (-3x + 6x) + (9 + 6) = 3x + 15
✔ Final Answer: D. 3x + 15

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Question 4: 4a + 8 = -20

Step 1: Subtract 8 from both sides → 4a = -28
Step 2: Divide by 4 → a = -7
✔ Final Answer: B. -7

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Question 5: -5x - 10 < -30

Step 1: Add 10 to both sides → -5x < -20
Step 2: Divide by -5 → Remember to flip inequality sign → x > 4
✔ Final Answer: A. x > 4

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Question 6: 8(x - 1) = 4(x + 4) - 2x

Step 1: Expand left side → 8x - 8
Step 2: Expand right side → 4x + 16 - 2x = 2x + 16
Step 3: Equation becomes → 8x - 8 = 2x + 16
Step 4: Subtract 2x → 6x - 8 = 16
Step 5: Add 8 → 6x = 24
Step 6: Divide by 6 → x = 4
✔ Final Answer: B. 4

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Question 7: What is 16% of 34?

Step 1: Convert 16% to decimal → 0.16
Step 2: Multiply → 0.16 × 34 = 5.44
(Note: No options provided, but answer is 5.44)

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Final Answers:

1. D
2. A
3. D
4. B
5. A
6. B
7. 5.44