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Which is the number line solution of (\frac{7-2x}{4}\ge -3)?असमानता (\frac{7-2x}{4}\ge -3) का संख्या रेखा पर हल कौन-सा है?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: (x\le\frac{19}{2}), closed dot at (\frac{19}{2}) shaded left(x\le\frac{19}{2}), (\frac{19}{2}) पर बंद बिंदु और बाईं ओर
(7-2x\ge -12) gives (-2x\ge -19), so (x\le\frac{19}{2}). In exams, reverse the sign when dividing by a negative.(7-2x\ge -12) से (-2x\ge -19), इसलिए (x\le\frac{19}{2})। परीक्षा में ऋणात्मक से भाग देने पर चिन्ह पलटें।
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