5

Set 10: Linear Equations (Advanced)

Explanation

Answer: B

If 3x + 2y = 10 and 2x + 3y = 15, what is x + y?

What is x + y?

A.

25

B.

5

✓ Correct
C.

3

D.

10

Detailed Explanation

Choice B is correct. Add equations: 5 x + 5 y = 25. Divide by 5: x + y = 5.

Key Steps:

The correct answer is 5

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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