5
Answer: ASet 4: Systems Of Equations (Beginner)
Explanation
PROBLEM
Solve: 5x + 5y = 20, x + 5y = 12. Find x.
Solve: 5x + 5y = 20, x + 5y = 12. Find x.
A.✓ Correct
2
B.
4
C.
3
D.
1
Detailed Explanation
Choice A is the best answer. Using elimination or substitution: x = 2
Why others are wrong:
B: 4 is incorrect because it does not satisfy the equation.
C: 3 is incorrect because it does not satisfy the equation.
D: 1 is incorrect because it does not satisfy the equation.