Question

x+5y=8 (1)
x=2-5y (2)
what is the solution of the system?

Answer 1

\[2-5y+5y=8\]
2=8

Answer 2

2=8?????
That makes no sense.
So what does it tell us? That we are looking for something that doesn't exist. These lines are parallel and so there is no solution.

Answer 3

lend me $8 i will give you $2 back