SOLUTION: SOLVE AND GRAPH X+Y=3 X-Y=1

Algebra ->  Graphs -> SOLUTION: SOLVE AND GRAPH X+Y=3 X-Y=1      Log On


   

Question 136886: SOLVE AND GRAPH X+Y=3 X-Y=1
Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
sometimes it's easier to graph & then solve:
the solution here is (2,1)
X+Y=3
Y=-X+3 (RED LINE)
X-Y=1
-Y=-X+1
Y=X-1 (GREEN LINE)
+graph%28+300%2C+200%2C+-6%2C+5%2C+-10%2C+10%2C+-x+%2B3%2C+x+-1%29+
(graph 300x200 pixels, x from -6 to 5, y from -10 to 10, of TWO functions -x +3 and x -1).