In the equation 2x – cy = 18, c is a constant. If the value of y is 2 when x is 6, what is the value of x when y is 3 ? Options
A) −9/2
B) -4
C) -3
D) 4
E) 9/2
2x - cy = 18   x=6, y=2;   12-2c=18   c=-3   2x-cy=18   when y=3, c=-3, x=   x=9/2   ANSW9/2R:9/2
<result>E</result>
In the equation 2x – cy = 18, c is a constant. If the value of y is 2 when x is 6, what is the value of x when y is 3 ?