Question

find two solution of x+2y=6

Answer 1

x=2 and y=2 all are 2 only

Answer 2

x+2y=6
put y = 0
x=6-2×0
x=6
put y =1
x=6-2×1
x=4

the solution of x+2y=6
(6,0), (4,1)