( 7-2(3x-1)\le -9 ) का संख्या रेखा पर सही निरूपण कौन सा होगा?
Which is the correct number-line representation of ( 7-2(3x-1)\le -9 )?
Explanation opens after your attempt
C. \( x\ge 3 \), ( 3 ) पर बंद बिंदु और दाईं ओर छाया\( x\ge 3 \), closed at ( 3 ), shaded right
Concept
Simplifying gives \( 9-6x\le -9 \), so \( -6x\le -18 \) and \( x\ge 3 \). Reverse the sign when dividing by a negative.
Why this answer is correct
The correct answer is C. \( x\ge 3 \), ( 3 ) पर बंद बिंदु और दाईं ओर छाया / \( x\ge 3 \), closed at ( 3 ), shaded right. Simplifying gives \( 9-6x\le -9 \), so \( -6x\le -18 \) and \( x\ge 3 \). Reverse the sign when dividing by a negative.
Exam Tip
सरलीकरण से \( 9-6x\le -9 \), इसलिए \( -6x\le -18 \) और \( x\ge 3 \) मिलता है। ऋणात्मक से भाग देने पर चिन्ह पलटें।
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