4
Answer: ASet 2: Systems Of Equations (Intermediate)
Explanation
PROBLEM
Solve: 2x + 3y = 23, 2x + y = 17. Find y.
Solve: 2x + 3y = 23, 2x + y = 17. Find y.
A.✓ Correct
3
B.
4
C.
5
D.
2
Detailed Explanation
Choice A is the best answer. Using elimination or substitution: y = 3
Why others are wrong:
B: 4 is incorrect because it does not satisfy the equation.
C: 5 is incorrect because it does not satisfy the equation.
D: 2 is incorrect because it does not satisfy the equation.