Given the two equations 5r - 5s = 15 and 2r - 2s = 6, by how much does r exceed s?  Choose the correct choice from the following answers:
A) 3 B) 2 C) 11 D) 4 E) 7
Solve by Simultaneous Equations.   My Answer is A.   r=6   s=3
<result>A</result>
Given the two equations 5r - 5s = 15 and 2r - 2s = 6, by how much does r exceed s?