Question

find the vale of k if x =2 y =1​

Answer 1

Given 2x+3y=k

Putting x=2 and y=1

2(2)+3(1) =k

4+3=k


K=7

Answer 2

$\huge\mathbb\red{QUESTION:}$

Find the value of k, if x=2,y=1 is a solution of the equation 2x+3y=k.

$\huge\mathbb\red{ANSWER}$

$\sf\blue\bigstar$Given,linear equation in two variables 'x' and 'y' is 2x+3y=k

$\sf\blue\bigstar$Substitute x=2, y=1 in the equation,

$\sf\blue\bigstar$We get,

$\sf\blue\bigstar$2×2+3×1=k

$\sf\blue\bigstar$4+3=k

$\huge\box{7=k}$

$\therfore$The value of k is 7.