Question 724643
Both are in standard form which allows you to find x and y intercepts.  


{{{3x-6y=0}}}
let x=0.  What is y?
let y=0.  What is x?
Now you have two points for this line, so graph the line.


{{{6x+3y=18}}}
let x=0.  What is y?
let y=0.  What is x?
Now you have two points for this line, so graph the line.


Two line, 3x-6y=0 and 6x+3y=18, are now graphed.  They intersect.  What point do you read as the intersection of these two lines?
DONE.


{{{graph(400,400,-2,25,-2,25,(1/2)x,-2x+6)}}}
Reading the graph depends on how accurately you make your number line axes.  The intersection is {{{x=2&2/5}}} ,  {{{y=1&1/5}}}.