If 2x-y=4 then 6x-3y=?  Options
A) 15
B) 12
C) 18
D) 10
E) 14
6x-3y=3*(2x-y)   6 -3= 
<gadget id="calculator">6 -3</gadget>
<output>3</output>
3*(2x-y)=3*4= 
<gadget id="calculator">3*4</gadget>
<output>12</output>
12   ANSWER:12
<result>B</result>
If 2x-y=4 then 6x-3y=?