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Elementary Mathematics

Elementary Mathematics Topics

School level (Class 6–12) — Elementary Mathematics

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Number Systems

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Algebra Basics

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quiz Questions

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Q51

If 2x + 13 = 23, find x.

1 · 2 marks · MCQ

A.

4

B.

7

C.

5

D.

11

Explanation

2x = 10 ⇒ x = 5.

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Q52

If 3x + 25 = 34, find x.

2 · 2 marks · MCQ

A.

11

B.

3

C.

2

D.

5

Explanation

3x = 9 ⇒ x = 3.

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Q53

If 8x + 26 = 90, find x.

3 · 2 marks · MCQ

A.

8

B.

11

C.

10

D.

7

Explanation

8x = 64 ⇒ x = 8.

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Q54

If 8x + 14 = 126, find x.

4 · 2 marks · MCQ

A.

13

B.

16

C.

15

D.

14

Explanation

8x = 112 ⇒ x = 14.

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Q55

If 4x + 31 = 59, find x.

5 · 2 marks · MCQ

A.

6

B.

7

C.

9

D.

14

Explanation

4x = 28 ⇒ x = 7.

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Q56

If 3x + 30 = 45, find x.

1 · 2 marks · MCQ

A.

7

B.

4

C.

15

D.

5

Explanation

3x = 15 ⇒ x = 5.

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Q57

If 9x + 19 = 127, find x.

2 · 2 marks · MCQ

A.

70

B.

12

C.

14

D.

11

Explanation

9x = 108 ⇒ x = 12.

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Q58

If 6x + 19 = 103, find x.

3 · 2 marks · MCQ

A.

17

B.

13

C.

16

D.

14

Explanation

6x = 84 ⇒ x = 14.

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Q59

If 5x + 39 = 59, find x.

4 · 2 marks · MCQ

A.

4

B.

3

C.

6

D.

11

Explanation

5x = 20 ⇒ x = 4.

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Q60

If 4x + 14 = 30, find x.

5 · 2 marks · MCQ

A.

3

B.

7

C.

4

D.

6

Explanation

4x = 16 ⇒ x = 4.