Question

x-3y=9

Answer 1

what are you trying to solve?

Answer 2

I think he's trying to find what y is equal @Zorark

Answer 3

and what x is

Answer 4

x - 3y = -9
.
This is a linear equation in standard form. Probably the easiest way to determine
the graph for this form is by using the following procedure.
.
You can draw the graph by first recognizing that when x equals zero the corresponding
answer for y is on the y-axis. Similarly, when y equals zero, the corresponding value of
x is on the x-axis.
.
So let's begin by going to the given equation and substituting 0 for x to get:
.
0 - 3y = -9
.
Solve for y by dividing both sides by -3 to get y = +3. So you now know that the point
(0, +3Now return to the given equation and substitute 0 for y. When you make that substitution
the equation becomes:
.
x - (3*0) = -9
.
which you can see leads to x = -9. This gives us the point (-9, 0) which is on the graph
and is a point on the x-axis.
.
At this stage you have two points on the graph ... (0, +3) and (-9, 0). Plot these two
points and then use a straight edge to extend a line in both directions through these
two points. This is the graph for this problem. Once you have the graph, it is probably
a good idea to find a point on the graph, and substitute its x and y values into the
original equation to ensure that the equation still balances. This will help to verify that
the graph is correct for the given equation.) is on the graph and this point is on the y-axis.