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)?

Author: Muft Shiksha Editorial Team Published:
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Correct Answer

B. (x=21)

Step 1

Concept

From \(\frac{3}{7}x-9=0\), \(\frac{3}{7}x=9\) and (x=21). With a fractional coefficient, multiply by the reciprocal.

Step 2

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.

Step 3

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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Mathematics Answer, Explanation and Revision Hints

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)?

Correct Answer: B. (x=21). Explanation: \(\frac{3}{7}x-9=0\) से \(\frac{3}{7}x=9\) और (x=21) मिलता है। भिन्न गुणांक में उलटा गुणा करें। / From \(\frac{3}{7}x-9=0\), \(\frac{3}{7}x=9\) and (x=21). With a fractional coefficient, multiply by the reciprocal.

Which concept should I revise for this Mathematics MCQ?

From \(\frac{3}{7}x-9=0\), \(\frac{3}{7}x=9\) and (x=21). With a fractional coefficient, multiply by the reciprocal.

What exam hint can help solve this Mathematics question?

\(\frac{3}{7}x-9=0\) से \(\frac{3}{7}x=9\) और (x=21) मिलता है। भिन्न गुणांक में उलटा गुणा करें।