5

Set 3: Systems Of Equations (Intermediate)

Explanation

Answer: D

PROBLEM

Solve: 5x + 2y = 55, 4x + y = 41. Find y.

Solve: 5x + 2y = 55, 4x + y = 41. Find y.

A.

4

B.

3

C.

6

D.

5

✓ Correct

Detailed Explanation

Choice D is the best answer. Using elimination or substitution: y = 5

Why others are wrong:
A: 4 is incorrect because it does not satisfy the equation.
B: 3 is incorrect because it does not satisfy the equation.
C: 6 is incorrect because it does not satisfy the equation.