5

Set 1: Linear Equations

Explanation

Answer: D

Solve: 5(x2)+3=185(x - 2) + 3 = 18

A.

3

B.

1

C.

15

D.

5

✓ Correct

Detailed Explanation

Choice D is correct. Choice B is the correct answer. 1. Subtract 3: 5(x2)=155(x - 2) = 15 2. Divide by 5: x2=3x - 2 = 3 3. Add 2: x=5x = 5 4. Verify: 5(3)+3=185(3) + 3 = 18 ✓ Choice D is incorrect because it results from an error in the solution process. Choice A 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 5

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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