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8

Set 5: Systems Of Equations (Beginner)

Explanation

Answer: D

PROBLEM

Solve: 5x + 2y = 39, 2x + 2y = 18. Find y.

Solve: 5x + 2y = 39, 2x + 2y = 18. Find y.

A.

3

B.

4

C.

1

D.

2

✓ Correct

Detailed Explanation

Choice D is the best answer. Using elimination or substitution: y = 2

Why others are wrong:
A: 3 is incorrect because it does not satisfy the equation.
B: 4 is incorrect because it does not satisfy the equation.
C: 1 is incorrect because it does not satisfy the equation.
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