6

Set 5: Linear Equations (Advanced)

Explanation

Answer: A

Solve: 5(2x)3=275(2x) - 3 = 27

A.

3

✓ Correct
B.

2.4

C.

15

D.

6

Detailed Explanation

Choice A is correct. Choice Ahoice D is the correct answer. 1. Simplify: 10x3=2710x - 3 = 27 2. Add 3: 10x=3010x = 30 3. Divide by 10: x=3x = 3 4. Verify: 303=2730- 3 = 27 ✓ 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 B is incorrect because it results from an error in the solution process.

Key Steps:

The correct answer is 3

Why others are wrong:
B: Choice B 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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