7
Answer: CSet 2: Systems Of Equations (Beginner)
Explanation
PROBLEM
Solve: 2x + 5y = 23, 5x + 5y = 35. Find y.
Solve: 2x + 5y = 23, 5x + 5y = 35. Find y.
A.
1
B.
4
C.✓ Correct
3
D.
2
Detailed Explanation
Choice C is the best answer. Using elimination or substitution: y = 3
Why others are wrong:
A: 1 is incorrect because it does not satisfy the equation.
B: 4 is incorrect because it does not satisfy the equation.
D: 2 is incorrect because it does not satisfy the equation.