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If (2–1) is a solution of the equation 2x - y equals to X then value of k is :?
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If (2–1) is a solution of the equation 2x - y equals to X then value o...
Understanding the Equation
The given equation is 2x - y = k. We need to find the value of k, given that (2, -1) is a solution.
Substituting the Solution into the Equation
To find k, we substitute the values of x and y from the solution (2, -1):
- x = 2
- y = -1
Now, plug these values into the equation:
- 2(2) - (-1) = k
Calculating the Value
Now let’s perform the calculations:
- 2 * 2 = 4
- - (-1) = +1
So we have:
- 4 + 1 = k
This simplifies to:
- k = 5
Conclusion
Thus, the value of k is:
- k = 5
To summarize:
- The equation is 2x - y = k.
- By substituting (2, -1) into the equation, we find k = 5.
- Therefore, the final answer is k = 5.
The given equation is 2x - y = k. We need to find the value of k, given that (2, -1) is a solution.
Substituting the Solution into the Equation
To find k, we substitute the values of x and y from the solution (2, -1):
- x = 2
- y = -1
Now, plug these values into the equation:
- 2(2) - (-1) = k
Calculating the Value
Now let’s perform the calculations:
- 2 * 2 = 4
- - (-1) = +1
So we have:
- 4 + 1 = k
This simplifies to:
- k = 5
Conclusion
Thus, the value of k is:
- k = 5
To summarize:
- The equation is 2x - y = k.
- By substituting (2, -1) into the equation, we find k = 5.
- Therefore, the final answer is k = 5.
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If (2–1) is a solution of the equation 2x - y equals to X then value of k is :?
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If (2–1) is a solution of the equation 2x - y equals to X then value of k is :? for Class 9 2024 is part of Class 9 preparation. The Question and answers have been prepared according to the Class 9 exam syllabus. Information about If (2–1) is a solution of the equation 2x - y equals to X then value of k is :? covers all topics & solutions for Class 9 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for If (2–1) is a solution of the equation 2x - y equals to X then value of k is :?.
If (2–1) is a solution of the equation 2x - y equals to X then value of k is :? for Class 9 2024 is part of Class 9 preparation. The Question and answers have been prepared according to the Class 9 exam syllabus. Information about If (2–1) is a solution of the equation 2x - y equals to X then value of k is :? covers all topics & solutions for Class 9 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for If (2–1) is a solution of the equation 2x - y equals to X then value of k is :?.
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