1
Answer: BSet 2: Systems Of Equations (Intermediate)
Explanation
PROBLEM
Solve: x + 5y = 18, 2x + y = 9. Find x.
Solve: x + 5y = 18, 2x + y = 9. Find x.
A.
1
B.✓ Correct
3
C.
5
D.
4
Detailed Explanation
Choice B is the best answer. Using elimination or substitution: x = 3
Why others are wrong:
A: 1 is incorrect because it does not satisfy the equation.
C: 5 is incorrect because it does not satisfy the equation.
D: 4 is incorrect because it does not satisfy the equation.