असमानता \(-3x\ge 21\) का हल क्या है?

What is the solution of the inequality \(-3x\ge 21\)?

Explanation opens after your attempt
Correct Answer

A. \(x\le -7\)

Step 1

Concept

Dividing by (-3) reverses the sign and gives \(x\le -7\). Reverse the sign while dividing by a negative number.

Step 2

Why this answer is correct

The correct answer is A. \(x\le -7\). Dividing by (-3) reverses the sign and gives \(x\le -7\). Reverse the sign while dividing by a negative number.

Step 3

Exam Tip

(-3) से भाग देने पर चिह्न पलटता है और \(x\le -7\) मिलता है। ऋणात्मक से भाग देते समय चिह्न बदलें।

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Mathematics Answer, Explanation and Revision Hints

असमानता \(-3x\ge 21\) का हल क्या है? / What is the solution of the inequality \(-3x\ge 21\)?

Correct Answer: A. \(x\le -7\). Explanation: (-3) से भाग देने पर चिह्न पलटता है और \(x\le -7\) मिलता है। ऋणात्मक से भाग देते समय चिह्न बदलें। / Dividing by (-3) reverses the sign and gives \(x\le -7\). Reverse the sign while dividing by a negative number.

Which concept should I revise for this Mathematics MCQ?

Dividing by (-3) reverses the sign and gives \(x\le -7\). Reverse the sign while dividing by a negative number.

What exam hint can help solve this Mathematics question?

(-3) से भाग देने पर चिह्न पलटता है और \(x\le -7\) मिलता है। ऋणात्मक से भाग देते समय चिह्न बदलें।