Discover the answers you need at Westonci.ca, where experts provide clear and concise information on various topics. Discover solutions to your questions from experienced professionals across multiple fields on our comprehensive Q&A platform. Get precise and detailed answers to your questions from a knowledgeable community of experts on our Q&A platform.

I have a question. In my class we are doing a new unit and I don't understand it. We are solving systems of equations by graphing. I don't understand how to graph each point for both equations and how they intersect each other.

there is an example:
{ x+y=8
x-y=4

Sagot :

You'd do x+x, y+(-y), and 8+4. You'll get 2x+0=12.
X=6 and y=2
x + y = 8
x - y = 4
    2x = 12
     2      2
      x = 6
6 + y = 8
-6       -6

     y = 2
(x, y) = (6, 2)