20x+9y=9
First, the formula for slope intercept is y=mx+b
So, in order to get it in the slope form we have to subtract 20x from both sides.
We end up with, 9y=-20x+9
We have to get rid of the 9 so we divide.
9y=-20x+9
/9 /9. /9
I don’t want to write the answer because I want you too find it out. :) hope this helps!