6
Answer: CSet 3: Systems Of Equations (Advanced)
Explanation
PROBLEM
Solve: 4x + 4y = 88, 5x + 3y = 88. Find y.
Solve: 4x + 4y = 88, 5x + 3y = 88. Find y.
A.
10
B.
9
C.✓ Correct
11
D.
13
Detailed Explanation
Choice C 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.
B: 9 is incorrect because it does not satisfy the equation.
D: 13 is incorrect because it does not satisfy the equation.