Posted by **Harley** on Friday, March 25, 2011 at 9:08pm.

A piont on a graph that works for x-y=8and x+y=-2

- Algerbra -
**Lina**, Friday, March 25, 2011 at 10:15pm
This is a system of equations.

x-y=8

x+y=-2

The easiest way to solve would be the elimination method because it is already set up; if you add the equations, the y cancels out and gives you:

2x=6

Further,

x=3

Given x you can find y in any equation above; x-y=8

Substitute the 3: 3-y=8

y=-5

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