Question

If ( 1 , 1 ) is a solution of 10x +20y =2k then k = ?​

Answer 1

Answer:

15

Step-by-step explanation:

set=(1,1) so it is (x,y)

so 10×1 +20×1=2×k

10+20=30

30=2k

k=30÷2=15

Answer 2

Answer:

by putting the values of 1 and 1 at the place of x and y respectively you will get the answer as 15