<PRE><B>Question 110583</B>
Well you are trying to figure this out.. you do this..
--
--
3(7-2y)=9
--
There is an invisible multiplication sign in between the 3 and the first parenthese.  
--
Pretend it is
--
3*(7-2y)=9
--
Now you have to find out what 2xy is.. well.. only 3x3=9, so we need to make the value in the parentheses worth 3.
--
Well multiplying comes first.. so we have to make a number with 2*2 and subtract it from 7 to =3.  7-3=4 so we need to make 2y equivalent to 4.  
--
Lets try y as 2
--
3*(7-2*2)=9
3*(7-4)=9
3*3=9
--
y=2</PRE>