#### Answer

{(4,18)}

#### Work Step by Step

x-4=0
x-4+4=0+4
x=4
There is no y in this equation, therefore x must equal 4. Plug this value for x into the other equation to find y.
9x-2y=0
9(4)-2y=0
36-2y=0
36-36-2y=-36
-2y=-36
y=$\frac{-36}{-2}$
y=18
Therefore the solution is {(4,18)}