Set 1: Linear Equations

Explanation

Answer: D

If $9x - 15 = 6x + 3$ , what is the value of $x$ ?

1.2

✓ Correct

Detailed Explanation

Choice D is correct. Choice Ahoice C is the correct answer. 1. Subtract 6 x: $3x - 15 = 3$ 2. Add 15: $3x = 18$ 3. Divide by 3: $x = 6$ 4. Verify: $9(6) - 15 = 39$ and $6(6) + 3 = 39$ ✓ Choice Ahoice D 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 6

Why others are wrong:

A: Choice A is incorrect and may result from a calculation error.

B: Choice B is incorrect and may result from a calculation error.

C: Choice C is incorrect and may result from a calculation error.

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