Set 7: Linear Equations (Advanced)

Explanation

Answer: D

Solve: 1. $5x + 3 = 9$

✓ Correct

Detailed Explanation

Choice D is correct. Choice Ahoice D is the correct answer. 1. Subtract 3: $1.5x = 6$ 2. Divide by 1.5: $x = 4$ 3. Verify: $1.5(4) + 3 = 6 + 3 = 9$ ✓ Choice Ahoice C is incorrect because it results from an error in the solution process. Choice Ahoice B 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 4

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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