Question

if x=2, y= -1 is a solution of the equation 2x+3y=k then the value of k is ????

Answer 1

Hii There!!!

It is given that x = 2 and y = -1 are the solutions of the given equation
$\color{Orange}{2x + 3y=k ----1)}$

So, substitute these values in equation 1) we have :-

2 × ( 2 ) + 3 × ( -1 ) = k

=> 4 - 3 = k

=> 1 = k

Hence, the value required value is $\boxed{k=1}$.

_________________________

# ¢'$ #

Hope it helps :)

Answer 2

QUESTION


if x=2, y= -1 is a solution of the equation 2x+3y=k then the value of k is ?


ANSWER



GIVEN. EQ





$2x + 3y = k$




GIVEN VALUES


$x = 2$


and


$y = - 1$



putting both value in given EQUATION



we get


$2(2) + 3( - ) = k$



$4 - 3 = k$



k=1



hence value of given eq is 1


VERIFICATION



PUT VALUE OF k Let see what happened


$4 - 3 = 1$


1=1

hence proved