असमानता \(-4x+7\le 19\) का हल क्या है?
What is the solution of the inequality \(-4x+7\le 19\)?
Explanation opens after your attempt
B. \(x\ge -3\)
Concept
After subtracting (7) we get \(-4x\le 12\) and dividing by (-4) reverses the sign to \(x\ge -3\). Pay special attention to negative coefficients.
Why this answer is correct
The correct answer is B. \(x\ge -3\). After subtracting (7) we get \(-4x\le 12\) and dividing by (-4) reverses the sign to \(x\ge -3\). Pay special attention to negative coefficients.
Exam Tip
(7) घटाने पर \(-4x\le 12\) और (-4) से भाग देने पर चिन्ह उलटकर \(x\ge -3\) होगा। ऋणात्मक गुणांक पर विशेष ध्यान दें।
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