If -4x < 20, what is the solution?यदि -4x < 20 है, तो इसका हल क्या है?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: x > -5x > -5
Divide both sides by -4. Because -4 is negative, reverse the inequality sign: x > 20/(-4) = -5. Therefore, the solution is x > -5.दोनों पक्षों को -4 से भाग दें। चूँकि -4 ऋणात्मक है, इसलिए असमानता का चिन्ह उलट जाएगा: x > 20/(-4) = -5। अतः हल x > -5 है।
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