8
Answer: ASet 2: Systems Of Equations (Intermediate)
Explanation
PROBLEM
Solve: 5x + 3y = 27, 5x + y = 19. Find y.
Solve: 5x + 3y = 27, 5x + y = 19. Find y.
A.✓ Correct
4
B.
3
C.
2
D.
5
Detailed Explanation
Choice A is the best answer. Using elimination or substitution: y = 4
Why others are wrong:
B: 3 is incorrect because it does not satisfy the equation.
C: 2 is incorrect because it does not satisfy the equation.
D: 5 is incorrect because it does not satisfy the equation.