असमता (4-7x>18) का सही हल कौन सा है?
What is the correct solution of (4-7x>18)?
Explanation opens after your attempt
A. (x<-2)
Concept
From (4-7x>18), we get (-7x>14), hence (x<-2). Do not forget to reverse the sign when dividing by negative (-7).
Why this answer is correct
The correct answer is A. (x<-2). From (4-7x>18), we get (-7x>14), hence (x<-2). Do not forget to reverse the sign when dividing by negative (-7).
Exam Tip
(4-7x>18) से (-7x>14) और (x<-2) मिलता है। ऋणात्मक (-7) से भाग देते समय चिन्ह पलटना न भूलें।
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