allery5x - 7 = 18 எனில், x-ஐக் காண்க.
A6
B5
C3
D4
Answer & Solution
Correct answer: B. 5
7-ஐக் கூட்டினால் 5x = 25 கிடைக்கும், மேலும் 5-ஆல் வகுத்தால் x = 5 கிடைக்கும்.
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