Question

How do you solve the system of equations `y=-3x-1` and `3x+y=-1`?

Answer 1

There are innumerable number of solutions.

Explanation:

`y=-3x-1` -----------------------(1)
`3x+y=-1` ------------------------(2)

Both the equations are one and the same.
Solve equation (2) for `y`

`y=-3x-1` -------------------(2)

The second line will coincide with the first one.
Hence, there are innumerable number of solutions.