6

Set 3: Linear Equations

Explanation

Answer: C

If 4(x1)+5=174(x - 1) + 5 = 17, what is the value of xx?

A.

3

B.

5

C.

4

✓ Correct
D.

2

Detailed Explanation

Choice C is correct. Choice D is the correct answer. 1. Subtract 5: 4(x1)=124(x - 1) = 12 2. Divide by 4: x1=3x - 1 = 3 3. Add 1: x=4x = 4 4. Verify: 4(3)+5=174(3) + 5 = 17 ✓ Choice A is incorrect because it results from an error in the solution process. Choice D is incorrect because it results from an error in the solution process. Choice C 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.
D: Choice D is incorrect and may result from a calculation error.

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