Set 16: Linear Equations (Advanced)

Explanation

Answer: A

Solve: $5(x + 2) = 2x + 19$

✓ Correct

Detailed Explanation

Choice A is correct. Choice A is the correct answer. 1. Distribute: $5x + 10 = 2 x + 19$ 2. Subtract 2 x: $3x + 10 = 19$ 3. Subtract 10: $3x = 9$ 4. Divide by 3: $x = 3$ 5. Verify: $5(5) = 25$ and $6+ 19 = 25$ ✓ Choice D is incorrect because it results from an error in the solution process. Choice B 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 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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