Question

(0,-3) is a solution of linear equation 2x+3y=k. Find the value of k

Answer 1

put x=0 y= -3

0-9=k

k=-9

Answer 2

hi mate

p(X)=2x+3y

put X=0. because in the solution (0,-3)X=0

p(0)=2*0+3y

0=0+3y

y=1/3

put y=1/3 in 2x+3y=0

2x+3*1/3=0

0=2x+1

-1=2x

X=-1/2

thanks