allerya + b = 10 ഉം a - b = 4 ഉം ആണെങ്കിൽ, a യുടെ മൂല്യം എന്താണ്?
A6
B8
C7
D3
Answer & Solution
Correct answer: C. 7
രണ്ട് സമവാക്യങ്ങളും ചേർക്കുമ്പോൾ: 2a = 14 => a = 7.
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