8

Set 7: Linear Equations

Explanation

Answer: B

A number is doubled, then 5 subtracted. Result is same as number plus 10. Find number.

What is the number?

A.

10

B.

15

✓ Correct
C.

5

D.

20

Detailed Explanation

Choice B is correct. 2 x - 5 = x + 10. x = 15.

Key Steps:

The correct answer is 15

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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