If C + D = 9 and C and D are any numbers, which of the following is a possible value for 2C+3D?
Choose the correct choice from the following
A) 19
B) 09
C) 29
D) 39
E) 38
c + d = 9   2c + 3d = 2c + 2d + d = 2(c+d) + d = 9 + d=d=-9.   Now this reults in   c+d=9   c=18   2c + 3d=2(18)+3(-9)   2c + 3d= 9   Hence, 09 is the right answer.
<result>B</result>
If C + D = 9 and C and D are any numbers, which of the following is a possible value for 2C+3D?