SOLUTION: Directions: Solve each system of linear equations by graphing. Problem: x+y=4 x-y=2 I have no idea what to do here.

Algebra ->  Linear-equations -> SOLUTION: Directions: Solve each system of linear equations by graphing. Problem: x+y=4 x-y=2 I have no idea what to do here.      Log On


   

Question 885593: Directions: Solve each system of linear equations by graphing.
Problem: x+y=4
x-y=2
I have no idea what to do here.
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
Use a graphing calculator to graph each equation. If you do not have one, you can use this online graphing calculator

https://www.desmos.com/calculator

Graph the two equations to get this


The green graph is x%2By=4 and the blue graph is x-y=2

We see that the two lines cross at (3,1)

So the solution to the system is (3,1), basically x = 3 and y = 1