4

Set 3: Trigonometry

Explanation

Answer: A

Solve for xx: 2(x+3)=242(x + 3) = 24

A.

9

✓ Correct
B.

18

C.

4

D.

19

Detailed Explanation

Choice A is correct. 1. Start: 2(x+3)=242(x + 3) = 24 Divide by 2: x+3=12x + 3 = 12 Subtract 3: x=9x = 9 Therefore, x=9x = 9.

Key Steps:

Apply the appropriate mathematical formula

The correct answer is 9

Why others are wrong:
B: This would give an incorrect result. Choice B is incorrect and may result from a calculation error.
C: This would give an incorrect result. Choice C is incorrect and may result from a calculation error.
D: This would give an incorrect result. Choice D is incorrect and may result from a calculation error.

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