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3

Set 1: Systems Of Equations (Advanced)

Explanation

Answer: B

PROBLEM

Solve: 2x + y = 33, 5x + y = 66. Find y.

Solve: 2x + y = 33, 5x + y = 66. Find y.

A.

10

B.

11

✓ Correct
C.

9

D.

12

Detailed Explanation

Choice B is the best answer. Using elimination or substitution: y = 11

Why others are wrong:
A: 10 is incorrect because it does not satisfy the equation.
C: 9 is incorrect because it does not satisfy the equation.
D: 12 is incorrect because it does not satisfy the equation.
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