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Which is the correct number-line representation of ( 7-2(3x-1)\le -9 )?( 7-2(3x-1)\le -9 ) का संख्या रेखा पर सही निरूपण कौन सा होगा?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: ( x\ge 3 ), closed at ( 3 ), shaded right( x\ge 3 ), ( 3 ) पर बंद बिंदु और दाईं ओर छाया
Simplifying gives ( 9-6x\le -9 ), so ( -6x\le -18 ) and ( x\ge 3 ). Reverse the sign when dividing by a negative.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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