Question 67602
Y=-X+3
Y=X+1
{{{ graph( 300, 200, -6, 5, -10, 10, y = -x +3, y = x +1) }}} (graph 300x200 pixels, x from -6 to 5, y from -10 to 10, of TWO functions y = -x +3, y = x +1 ). 
THE PLOTTING OF THESE TWO EQUATIONS SHOW THE SOLUTION AS X=1 & Y=2 WHERE THE TWO LINES INTERSECT.