Proof Silver

Proof Silver

Proof Silver

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Answered
Correct
Incorrect

Question 1 of 25

1. Question
Show that 6(x – 3) + 8(x – 11) ≡ 2(7x – 53)
- 6x – 18 + 8x – 88
- 5x – 10 – 8x + 40
- 4x – 8 – 9x + 45
- 3x – 6 – 8x + 40
Correct

Incorrect
Question 2 of 25

2. Question
Show that 4(x – 3) + 7(x – 5) ≡ 11x – 47
- 4x – 12 + 7x – 35
- 4x – 7 + 7x – 35
- 4x + 12 + 7x – 15
- 4x – 7 + 7x – 15
Correct

Incorrect
Question 3 of 25

3. Question
Show that 4(x – 2) + 8(x – 5) ≡ 12(x – 4)
- 4x – 8 + 8x – 40
- 4x – 6 + 8x – 40
- 4x – 8 + 8x – 13
- 4x – 6 + 8x – 13
Correct

Incorrect
Question 4 of 25

4. Question
Show that 7(x + 8) – 2(x + 3) ≡ 5(x + 10)
- 7x + 56 – 2x – 6
- 6x – 48 – 2x + 6
- 7x – 56 – x + 3
- 8x – 64 – 2x + 6
Correct

Incorrect
Question 5 of 25

5. Question
Show that 4(x – 6) + 8(x – 5) ≡ 4(3x – 16)
- 4x – 24 + 8x – 40
- 4x – 10 + 8x – 40
- 4x – 24 + 8x – 13
- 4x – 10 + 8x – 13
Correct

Incorrect
Question 6 of 25

6. Question
Show that 4(x – 2) + 8(x – 12) ≡ 4(3x – 26)
- 4x – 8 + 8x – 96
- 4x – 6 + 8x – 96
- 4x – 8 + 8x – 20
- 4x – 6 + 8x – 20
Correct

Incorrect
Question 7 of 25

7. Question
Show that 3(x + 5) + 3(x + 3) ≡ 6(x + 4)
- 3x + 15 + 3x + 9
- 4x – 20 – 3x + 9
- 2x – 10 – 3x + 9
- 3x – 15 – 4x + 12
Correct

Incorrect
Question 8 of 25

8. Question
Show that 7(x – 2) + 8(x – 5) ≡ 3(5x – 18)
- 7x – 14 + 8x – 40
- 7x – 9 + 8x – 40
- 7x – 9 + 8x – 13
- 7x – 14 + 8x – 13
Correct

Incorrect
Question 9 of 25

9. Question
Show that 8(x – 2) + 3(x – 7) ≡ 11x – 37
- 8x – 16 + 3x – 21
- 8x – 10 + 3x – 21
- 8x – 16 + 3x – 10
- 8x – 10 + 3x – 10
Correct

Incorrect
Question 10 of 25

10. Question
Show that 3(x – 6) + 6(x – 9) ≡ 9(x – 8)
- 3x – 18 + 6x – 54
- 3x – 18 – 5x + 45
- 2x – 12 – 6x + 54
- 3x – 18 – 7x + 63
Correct

Incorrect
Question 11 of 25

11. Question
Show that 11(x – 2) + 4(x – 3) ≡ 15x – 34
- 11x – 22 + 4x – 12
- 11x – 9 + 4x – 12
- 11x – 13 + 4x – 7
- 11x – 9 + 4x – 1
Correct

Incorrect
Question 12 of 25

12. Question
Show that 4(x + 2) + 8(x + 5) ≡ 12(x + 4)
- 4x + 8 + 8x + 40
- 4x + 6 + 8x + 13
- 4x + 6 + 8x + 40
- 4x + 8 + 8x + 13
Correct

Incorrect
Question 13 of 25

13. Question
Show that 3(x + 9) + 3(x + 3) ≡ 6(x + 6)
- 3x + 27 + 3x + 9
- 3x – 27 – 2x + 6
- 4x – 36 – 3x + 9
- 4x – 36 – 3x + 9
Correct

Incorrect
Question 14 of 25

14. Question
Show that 6(x – 3) + 4(x – 2) ≡ 2(5x – 13)
- 6x – 18 + 4x – 8
- 6x – 3 + 4x – 8
- 6x – 3 + 4x – 2
- 6x – 18 + 4x – 2
Correct

Incorrect
Question 15 of 25

15. Question
Show that 7(x – 2) + 9(x – 5) ≡ 16x – 59
- 7x – 14 + 9x – 45
- 7x – 5 + 9x – 45
- 7x – 14 + 9x – 4
- 7x – 5 + 9x – 4
Correct

Incorrect
Question 16 of 25

16. Question
Show that 5(x – 6) + 5(x – 2) ≡ 10(x – 4)
- 5x – 30 + 5x – 10
- 5x – 30 – 4x + 8
- 4x – 24 – 5x + 10
- 6x – 36 – 5x + 10
Correct

Incorrect
Question 17 of 25

17. Question
Show that 14(x – 2) + 18(x – 5) ≡ 2(16x – 59)
- 14x – 28 + 18x – 90
- 14x – 12 + 18x – 13
- 14x – 12 + 18x – 90
- 14x – 28 + 18x – 13
Correct

Incorrect
Question 18 of 25

18. Question
Show that 4(x – 12) + 8(x – 25) ≡ 4(3x – 62)
- 4x – 48 + 8x – 200
- 4x – 8 + 8x – 17
- 4x – 8 + 8x – 200
- 4x – 48 + 8x – 17
Correct

Incorrect
Question 19 of 25

19. Question
Show that 6(x + 4) + 3(x + 1) ≡ 9(x + 3)
- 6x + 24 + 3x + 3
- 7x – 28 – 3x + 3
- 5x – 20 – 3x + 3
- 6x – 24 – 4x + 4
Correct

Incorrect
Question 20 of 25

20. Question
Show that 2(x – 8) + 5(x – 8) ≡ 7(x – 8)
- 2x – 16 + 5x – 40
- 2x – 6 + 5x – 3
- 2x – 6 + 5x – 40
- 2x – 16 + 5x – 3
Correct

Incorrect
Question 21 of 25

21. Question
Show that 9(x – 3) + 8(x – 7) ≡ 17x – 83
- 9x – 27 + 8x – 56
- 9x – 6 + 8x – 1
- 9x – 6 + 8x – 56
- 9x – 27 + 8x – 1
Correct

Incorrect
Question 22 of 25

22. Question
Show that 4(x + 4) + 4(x + 2) ≡ 8(x + 3)
- 4x + 16 + 4x + 8
- 3x – 12 – 4x + 8
- 4x – 16 – 5x + 10
- 5x – 20 – 4x + 8
Correct

Incorrect
Question 23 of 25

23. Question
Show that 9(x – 2) + 3(x – 15) ≡ 3(4x – 21)
- 9x – 18 + 3x – 45
- 9x – 27 + 3x – 30
- 9x – 27 + 3x – 45
- 9x – 18 + 3x – 30
Correct

Incorrect
Question 24 of 25

24. Question
Show that 14(x – 1) + 18(x – 15) ≡ 4(8x – 71)
- 14x – 14 + 18x – 270
- 14x – 13 + 18x + 3
- 14x – 14 + 18x + 3
- 14x – 13 + 18x – 270
Correct

Incorrect
Question 25 of 25

25. Question
Show that 7(x – 4) + 7(x – 2) ≡ 14(x – 3)
- 7x – 28 + 7x – 14
- 7x – 28 – 8x + 16
- 8x – 32 – 7x + 14
- 6x – 24 – 7x + 14
Correct

Incorrect

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