Question 127138
Step 1.  Pick a value for x.  Pick something simple like 0 or 1 to make the arithmetic easy.

Step 2.  Put the value into the equation whereever x appears.
{{{(0)+3y=6}}}, {{{3y=6}}}, {{{y=2}}}

Step 3.  Take the value you chose for x and the value you calculated for y and put them into ordered pair form (x comes first).  (0,2).


Step 4.  Plot this point on the graph
{{{drawing(600,600,-10,10,-10,10,
grid(1),
circle(0,2,.1),
locate(0.2,2.5,P1(0,2))
)}}}


Step 5.  Select a different value for x and repeat steps 1 through 4.  Let's try 3.  {{{3+3y=6}}}, {{{3y=3}}}, {{{y=1}}}, new ordered pair is (3,1).
{{{drawing(600,600,-10,10,-10,10,
grid(1),
circle(0,2,.1),
locate(0.2,2.5,P1(0,2)),
circle(3,1,.1),
locate(3.2,1.5,P2(3,1))
)}}}



Step 6.  Draw a line through the two points.
{{{drawing(600,600,-10,10,-10,10,
grid(1),
circle(0,2,.1),
locate(0.2,2.5,P1(0,2)),
circle(3,1,.1),
locate(3.2,1.5,P2(3,1)),
graph(600,600,-10,10,-10,10,-x/3+2))}}}