10

Set 2: Trigonometry

Explanation

Answer: C

If 8x+7=1198x + 7 = 119, what is the value of xx?

A.

24

B.

7

C.

14

✓ Correct
D.

4

Detailed Explanation

Choice C is correct. 1. Start: 8x+7=1198x + 7 = 119 Subtract 7: 8x=1128x = 112 Divide by 8: x=14x = 14 Therefore, x=14x = 14.

Key Steps:

Apply the appropriate mathematical formula

The correct answer is 14

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

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