6

Set 2: Systems Of Equations (Intermediate)

Explanation

Answer: C

PROBLEM

Solve: 3x + y = 25, 4x + y = 32. Find y.

Solve: 3x + y = 25, 4x + y = 32. Find y.

A.

2

B.

6

C.

4

✓ Correct
D.

5

Detailed Explanation

Choice C is the best answer. Using elimination or substitution: y = 4

Why others are wrong:
A: 2 is incorrect because it does not satisfy the equation.
B: 6 is incorrect because it does not satisfy the equation.
D: 5 is incorrect because it does not satisfy the equation.