Set 3: Linear Equations

Explanation

Answer: D

Solve: $2(x + 4) + 3(x - 1) = 25$

✓ Correct

Detailed Explanation

Choice D is correct. Choice Ahoice D is the correct answer. 1. Distribute: $2x + 8 + 3 x - 3 = 25$ 2. Combine like terms: $5x + 5 = 25$ 3. Subtract 5: $5x = 20$ 4. Divide by 5: $x = 4$ 5. Verify: $2(8) + 3(3) = 16 + 9 = 25$ ✓ Choice Ahoice C 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. Choice Ahoice 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.

C: Choice C is incorrect and may result from a calculation error.

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