यदि (p(x)=\frac{3}{7}x-9), तो किस मान पर (p(x)=0) होगा?
If (p(x)=\frac{3}{7}x-9), for which value will (p(x)=0)?
Explanation opens after your attempt
B. (x=21)
Concept
From \(\frac{3}{7}x-9=0\), \(\frac{3}{7}x=9\) and (x=21). With a fractional coefficient, multiply by the reciprocal.
Why this answer is correct
The correct answer is B. (x=21). From \(\frac{3}{7}x-9=0\), \(\frac{3}{7}x=9\) and (x=21). With a fractional coefficient, multiply by the reciprocal.
Exam Tip
\(\frac{3}{7}x-9=0\) से \(\frac{3}{7}x=9\) और (x=21) मिलता है। भिन्न गुणांक में उलटा गुणा करें।
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