You first make sure that y is isolated, in order to do so, you divide everything by 8, or in other cases, the number in front of y.
HOW?
Make sure that 8y is by itself and there's no other numbers beside it, In your case, 36x is with 8y, so bring over 36x to the other side, in doing so, it becomes a negative.
Now you have
8y=64−36x
To isolate y, you must factor, divide everything by 8 to get y by itself.
Now you have
y=8−4.5x
Now to graph it, you can just put it in a table of values.
Have 2 columns, one x, one y, then make x whatever you like.
NOTE: It's recommended for x to be −2,−1,0,1,2
Now just plug each x into the equation and that will be your (x,y) coordinate.
Example,
x=−2
y=8−4(−2)
y=16
Now your coordinates are (−2,16), then keep doing that until you finish your line.
graph{36x + 8y = 64 [-10, 10, -5, 5]}
