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Answer: ASet 4: Systems Of Equations (Intermediate)
Explanation
PROBLEM
Solve: 3x + 5y = 67, 3x + y = 35. Find x.
Solve: 3x + 5y = 67, 3x + y = 35. Find x.
A.✓ Correct
9
B.
10
C.
11
D.
7
Detailed Explanation
Choice A is the best answer. Using elimination or substitution: x = 9
Why others are wrong:
B: 10 is incorrect because it does not satisfy the equation.
C: 11 is incorrect because it does not satisfy the equation.
D: 7 is incorrect because it does not satisfy the equation.