allery2x + y = 7 आणि x + y = 4 वरून, y ची किंमत ______ आहे.
A4
B2
C3
D1
Answer & Solution
Correct answer: D. 1
वजाबाकी केल्यास x = 3 मिळते, आणि नंतर y = 4 - 3 = 1 मिळते.
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