Set 1: Trigonometry

Explanation

Answer: D

Solve for $x$ : $3(x + 7) = 51$

✓ Correct

Detailed Explanation

Choice D is correct. 1. Start: $3(x + 7) = 51$ Divide by 3: $x + 7 = 17$ Subtract 7: $x = 10$ Therefore, $x = 10$ .

Key Steps:

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Apply the appropriate mathematical formula

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The correct answer is 10

Why others are wrong:

A: This would give an incorrect result. Choice A is incorrect and may result from a calculation error.

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.

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