Question 44579
Solve the system by graphing.
3x+y=6
3x-y=0
X.................0..............1...........................5........................
Y=6-3X..........=6-3**0=3.....=6-3*1=3....................=6-3*5=-9.................
Y=3X............=3*0=0........=3*1=3......................=3*5=15
{{{ graph( 500, 500, -5, 5, -5, 5, 6-3*x, 3*x) }}} 
WE SEE THAT THE 2 LINES INTERSECT AT X=1 AND Y=3 WHICH IS THE ANSWER