x - y = 3
2x = -2y + 18
The system of equations above has how many solutions?  Choose the correct choice from the following
A) None
B) Exactly one
C) Exactly two
D) Exactly three
E) Infinitely many
x-y=3 ---------------1   2x=-2y+18 ---------------2   Divide equation 2 by 2:   2x/2=(2y+18)/2   x=-y+3   x+y=9----------------3   Equation 1 and 3 are equal and thus have:   x-y=3   x+y=9   x=6, y=3   Ans:Exactly one
<result>B</result>
x - y = 3
2x = -2y + 18
The system of equations above has how many solutions?