Question

if (2 ,- 3) is a solution of the equation 3 X + k y is equal to 18 find the value of k​

Answer 1

Answer:

(3,1) is a solution of the equation 3x + 2y = k 3x + 2y = k = >3(3) + 2(1) = k = >k = 9 + 2 = 11

Answer 2

Answer:

$\huge{\boxed{\rm{\red{K=-4}}}}$

Step-by-step explanation:

Given equation is 3x+ky=18

If a point is a solution of an equation then it satisfies the given equation

Given point is (2,-3)

Put x=2 and y=-3 in the given equation then

=>3(2)+k(-3)=18

=>6-3k=18

=>6-18=3k

=>-12=3k

=>3k=-12

=>k=-12/3

=>k=-4

The value of k is -4