allerya + b = 10 மற்றும் a - b = 4 எனில், a-ன் மதிப்பு என்ன?
A6
B8
C7
D3
Answer & Solution
Correct answer: C. 7
இரு சமன்பாடுகளையும் கூட்ட: 2a = 14 => a = 7.
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