Question

`x+y=7`

`x-y=-1`

How many solutions are there?
1
No Solution
Infinitely Many Solutions

Answer 1

[AI-generated answer — Bot GPT 3.5]

The given system of equations can be solved using elimination or substitution method.

Using elimination method:
Adding the two equations, we get:
`(x + y) + (x - y) = 7 + (-1)`
Simplifying, we get:
`2x = 6`
Dividing by 2, we get:
`x = 3`

Substituting the value of x into one of the equations:
`x - y = -1`
`3 - y = -1`
Simplifying, we get:
`-y = -4`
Multiplying by -1, we get:
`y = 4`

Therefore, there is exactly one solution to the given system of equations.

The answer is 1 solution.