8

Set 7: Linear Equations (Intermediate)

Explanation

Answer: B

Solve: 56x=25\frac{5}{6}x = 25

A.

25

B.

30

✓ Correct
C.

20

D.

150

Detailed Explanation

Choice B is correct. Choice D is the correct answer. 1. Multiply by 6: 5x=1505x = 150 2. Divide by 5: x=30x = 30 3. Verify: 56(30)=5(5)=25\frac{5}{6}(30) = 5(5) = 25 ✓ Choice A 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. Choice C is incorrect because it results from an error in the solution process.

Key Steps:

The correct answer is 30

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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