# How do you solve x+y=-1 and x-y=3?

##### 1 Answer

Nov 4, 2015

#### Explanation:

By asking us to solve, the question is indirectly asking us for the value of

To get the value of

Dividing both sides by 2, we get

Now to get the value of

Substituting

Transposing 1 to the right hand side, we get