Lisa built a rectangular flower garden that is 4 feet wide and has a perimeter of 26 feet.
what is the length of lisa's flower garden?

Perimeter is l+l+w+w,  or l*2+w*2.  We know the width is 4 feet.  26=4*2+l*2
So first,  find what 4*2 equals.  The answer is 8.  So subtract 8 from both sides.  4*2 Cancels out,  and 26 changes to 18.  Then,  divide both sides by 2.  The (*2) gets cancelled and 18 becomes 9.   The length is 9 FEET.

:)-Kibeye

I had to do this with a calculator( sorry) SUPER HARD the length is 9 feet ( hope this helps:)

The first one is correct