If you cut a 18ft piece of wood into two pieces making one piece 4ft longer than the other. What size is the smaller piece? Pick:
A) 4ft
B) 6ft
C) 8ft
D) 7ft
E) 12ft
Total length is 18ft, one piece is 4ft longer (x+4), leaving the other piece to figure out (x).   (x)+ (x+4)=18   x+x+4-4=18-4   2x=14   2x/2=14/2= 
<gadget id="calculator">14/2</gadget>
<output>7</output>
7   The piece is 7ft) 7ft.
<result>D</result>
If you cut a 18ft piece of wood into two pieces making one piece 4ft longer than the other. What size is the smaller piece?