Question

find the value of k if (3,-4) is the solution of the equation 5x+3y=k-3​

Answer 1

Answer:

-6

Step-by-step explanation:

5x+3y=k-3

if x=3 and y =-4 then

5(3)+3(-4)=k-3

15-12=k-3

3=k-3

k= -3-3

k = -6

Answer 2

Answer:

k = (3, -4)

$\implies \: x = 3 \: and \: y = - 4$

Substituting in the given equation ,

$\leadsto \: 5(3) + 3( - 4) = k - 3$

$\leadsto \: 15 - 12 = k - 3$

$\leadsto \: \: \: 3 = k - 3$

$\leadsto \: \: { \bold{ k \: = 6}}$

hope it helps