4
Answer: DSet 3: Systems Of Equations (Beginner)
Explanation
PROBLEM
Solve: 5x + 5y = 35, 4x + 5y = 32. Find y.
Solve: 5x + 5y = 35, 4x + 5y = 32. Find y.
A.
2
B.
3
C.
5
D.✓ Correct
4
Detailed Explanation
Choice D 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: 3 is incorrect because it does not satisfy the equation.
C: 5 is incorrect because it does not satisfy the equation.