alleryਜੇਕਰ x ਹੈ, ਤਾਂ ਪਤਾ ਕਰੋ ਕਿ 5x - 7 = 18 ਹੈ।
A6
B5
C3
D4
Answer & Solution
Correct answer: B. 5
7 ਜੋੜਨ ਨਾਲ 5x = 25 ਮਿਲਦਾ ਹੈ, ਅਤੇ 5 ਨਾਲ ਭਾਗ ਕਰਨ ਨਾਲ x = 5 ਮਿਲਦਾ ਹੈ।
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