Set 2: Linear Equations

Explanation

Answer: A

Solve for $x$ : $ax + b = c$

x = (c - b) / a

✓ Correct

x = (c + b) / a

x = (b - c) / a

x = c - b - a

Detailed Explanation

Choice A is correct. Choice A is the correct answer. 1. Start: $ax + b = c$ 2. Subtract b: $ax = c - b$ 3. Divide by a: $x = \frac{c - b}{a}$ Choice D is incorrect because subtracted a. Choice B is incorrect because sign error. Choice A is incorrect because sign error.

Key Steps:

•

The correct answer is x = (c - b) / a

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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