असमानता (7-5x<2x+21) का संख्या रेखा पर हल कौन-सा है?
Which is the number line solution of (7-5x<2x+21)?
Explanation opens after your attempt
A. (x>-2), (-2) पर खुला बिंदु और दाईं ओर(x>-2), open dot at (-2) shaded right
Concept
(7-5x<2x+21) gives (-14<7x), so (x>-2). In exams, match the final result with the number line direction.
Why this answer is correct
The correct answer is A. (x>-2), (-2) पर खुला बिंदु और दाईं ओर / (x>-2), open dot at (-2) shaded right. (7-5x<2x+21) gives (-14<7x), so (x>-2). In exams, match the final result with the number line direction.
Exam Tip
(7-5x<2x+21) से (-14<7x), इसलिए (x>-2)। परीक्षा में final result को number line की direction से मिलाएँ।
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