4
Answer: BSet 5: Systems Of Equations (Beginner)
Explanation
PROBLEM
Solve: 2x + 4y = 48, 2x + 3y = 40. Find y.
Solve: 2x + 4y = 48, 2x + 3y = 40. Find y.
A.
9
B.✓ Correct
8
C.
7
D.
6
Detailed Explanation
Choice B is the best answer. Using elimination or substitution: y = 8
Why others are wrong:
A: 9 is incorrect because it does not satisfy the equation.
C: 7 is incorrect because it does not satisfy the equation.
D: 6 is incorrect because it does not satisfy the equation.