8

Set 9: Linear Equations (Intermediate)

Explanation

Answer: B

If 8x6=5x+98x - 6 = 5x + 9, what is the value of xx?

A.

3

B.

5

✓ Correct
C.

1

D.

15

Detailed Explanation

Choice B is correct. Choice Ahoice D is the correct answer. 1. Subtract 5 x: 3x6=93x - 6 = 9 2. Add 6: 3x=153x = 15 3. Divide by 3: x=5x = 5 4. Verify: 8(5)6=348(5) - 6 = 34 and 5(5)+9=345(5) + 9 = 34 ✓ Choice Ahoice C is incorrect because it results from an error in the solution process. Choice Ahoice C is incorrect because it results from an error in the solution process. Choice Ahoice D is incorrect because it results from an error in the solution process.

Key Steps:

The correct answer is 5

Why others are wrong:
A: Choice A is incorrect and may result from a calculation error.
C: Choice C is incorrect and may result from a calculation error.
D: Choice D is incorrect and may result from a calculation error.

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