Question

for what value of k x equal to 2 and y equal -1 is a solution of x+3y-k equal 0​

Answer 1

Answer:

let's multiple the sum

x+ 3y-k=0

2+3*-1-k=0

i.e,2-3-k=0

-1=k

therefore answer is -1

Explanation:

hope this may help you