allery2x + y = 7 আৰু x + y = 4 ৰ পৰা, y ৰ মান হ'ল
A4
B2
C3
D1
Answer & Solution
Correct answer: D. 1
বিয়োগ কৰিলে x = 3 পোৱা যায়, আৰু তাৰ পিছত y = 4 - 3 = 1।
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