Class 8 Exam > Class 8 Questions > Solve: 7x=21a)3b)2c)14d)none of theseCorrect ...
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Solve: 7x = 21
- a)3
- b)2
- c)14
- d)none of these
Correct answer is option 'A'. Can you explain this answer?
Most Upvoted Answer
Solve: 7x=21a)3b)2c)14d)none of theseCorrect answer is option 'A'. Can...
To solve the equation 7x = 21, we need to find the value of x that makes the equation true.
**Solution:**
Step 1: Divide both sides of the equation by 7 to isolate x.
7x/7 = 21/7
Simplifying, we have:
x = 3
Therefore, the value of x that satisfies the equation 7x = 21 is x = 3.
**Explanation:**
The equation 7x = 21 can be read as "7 times a number x is equal to 21." To solve for x, we need to find the value of x that satisfies this equation.
Dividing both sides of the equation by 7 is the first step in isolating x. By dividing by 7 on both sides, we cancel out the coefficient of x and obtain a simplified equation of x = 3.
This means that the value of x that makes the equation 7x = 21 true is x = 3. When we substitute x = 3 back into the original equation, we find that indeed 7 times 3 is equal to 21.
Therefore, the correct answer is option A: 3.
**Solution:**
Step 1: Divide both sides of the equation by 7 to isolate x.
7x/7 = 21/7
Simplifying, we have:
x = 3
Therefore, the value of x that satisfies the equation 7x = 21 is x = 3.
**Explanation:**
The equation 7x = 21 can be read as "7 times a number x is equal to 21." To solve for x, we need to find the value of x that satisfies this equation.
Dividing both sides of the equation by 7 is the first step in isolating x. By dividing by 7 on both sides, we cancel out the coefficient of x and obtain a simplified equation of x = 3.
This means that the value of x that makes the equation 7x = 21 true is x = 3. When we substitute x = 3 back into the original equation, we find that indeed 7 times 3 is equal to 21.
Therefore, the correct answer is option A: 3.
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Community Answer
Solve: 7x=21a)3b)2c)14d)none of theseCorrect answer is option 'A'. Can...
7x = 21
=> x = 21/7
=> x = 3
Therefore the value of x is 3 .
=> x = 21/7
=> x = 3
Therefore the value of x is 3 .
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Solve: 7x=21a)3b)2c)14d)none of theseCorrect answer is option 'A'. Can you explain this answer? for Class 8 2025 is part of Class 8 preparation. The Question and answers have been prepared according to the Class 8 exam syllabus. Information about Solve: 7x=21a)3b)2c)14d)none of theseCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for Class 8 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Solve: 7x=21a)3b)2c)14d)none of theseCorrect answer is option 'A'. Can you explain this answer?.
Solve: 7x=21a)3b)2c)14d)none of theseCorrect answer is option 'A'. Can you explain this answer? for Class 8 2025 is part of Class 8 preparation. The Question and answers have been prepared according to the Class 8 exam syllabus. Information about Solve: 7x=21a)3b)2c)14d)none of theseCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for Class 8 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Solve: 7x=21a)3b)2c)14d)none of theseCorrect answer is option 'A'. Can you explain this answer?.
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