Question

if x=5 and y=3 is the solution of 3x+k y = 3 find k​

Answer 1

3x+ky=3

then x=5,y=3

3(5)+k(3)=3

15+3k=3

3k=3-15

3k=-12

k=-12/3

k=-4

hope u like it

thank you

Answer 2

Answer:

$3x + ky = 3 \\ 3 \times 5 + k \times 3 = 3 \\ 15 + k3 = 3 \\ k3 = 3 - 15 \\ k3 = - 12 \\ k = - 12 \div 3 \\ k = - 4$