Question:
Find the value of k, if x=2, y=1 is a solution of the equation 2x+3y=k.
Find the value of k, if x=2, y=1 is a solution of the equation 2x+3y=k.
Updated On: Jan 20, 2026
Hide Solution
Verified By Collegedunia
Solution and Explanation
Putting x = 2 and y = 1 in the given equation,
2x + 3y = k
⇒ 2(2) + 3(1) = k
⇒ 4 + 3 = k
⇒ k = 7
Therefore, the value of k is 7.
Was this answer helpful?
0
0
Top Questions on Linear Equations
- The sum of a two-digit number and the number obtained by reversing the digits is 110. If the tens digit of the number is 6 more than the units digit, then find the number.
- UP Board X - 2026
- Mathematics
- Linear Equations
- Solve the following pairs of linear equations : $3x - 5y = 4$, $9x = 2y + 7$
- UP Board X - 2026
- Mathematics
- Linear Equations
- In linear equation $\frac{x}{3} + \frac{y}{2} = 6$ if $x = 9$ then the value of $y$ will be :
- UP Board X - 2026
- Mathematics
- Linear Equations
- Consider a geometric sequence $729,\,81,\,9,\,1,\ldots$ If $P_n$ denotes the product of first $n$ terms of the G.P. such that \[ \sum_{n=1}^{40} (P_n)^{\frac{1}{n}}=\frac{3^{\alpha}-1}{2\times 3^{\beta}}, \] then find the value of $(\alpha+\beta)$.
- JEE Main - 2026
- Mathematics
- Linear Equations
- Evaluate the series \[ \frac{1}{25!}+\frac{1}{3!\,23!}+\frac{1}{5!\,21!}+\cdots \text{ up to 13 terms.} \]
- JEE Main - 2026
- Mathematics
- Linear Equations
View More Questions
Questions Asked in CBSE Class IX exam
- What are the main features of the mechanical teachers and the schoolrooms that Margie and Tommy have in the story?
- CBSE Class IX
- The fun they had
- “They can’t hang me twice.”
(i) Who says this?
(ii) Why does the speaker say it?- CBSE Class IX
- If I were you
- How do good animal husbandry practices benefit farmers?
- CBSE Class IX
- Animal Husbandry
- Why was the ‘holy man’ who gave Santosh’s mother his blessings surprised?
- CBSE Class IX
- Reach for the top
(i) The kind of person the doctor is (money, possessions)
(ii) The kind of person he wants to be (appearance, ambition)- CBSE Class IX
- The snake and the mirror
View More Questions