If 3x + 2y = 12 and x - y = 1, what is the value of y?
Correct answer: B. 9/5
- A. 7/5
- B. 9/5
- C. 11/5
- D. 12/5
Explanation
From x - y = 1, we get x = y + 1. Substitution gives 3(y + 1) + 2y = 12, so 5y = 9 and y = 9/5.
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