Set 3: Linear Equations (Intermediate)

Explanation

Answer: B

If 2. $5x - 5 = 20$ , what is the value of $x$ ?

✓ Correct

Detailed Explanation

Choice B is correct. Choice C is the correct answer. 1. Add 5: $2.5x = 25$ 2. Divide by 2.5: $x = 10$ 3. Verify: $25- 5 = 20$ ✓ 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. Choice D is incorrect because it results from an error in the solution process.

Key Steps:

•

The correct answer is 10

Why others are wrong:

A: Choice A 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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