A gardener has 26 feet of fencing for a garden. to find the width of the rectangular garden, the gardener uses the formula p=21+2w, where P is the perimeter, I is the length, and W is the width of the rectangle. the gardener wants to fence a garden that is 8 feet long. how wide is the garden. solve the equation for W, and justify each step.
p=21+2w
26=2(8)+2w
26=16+2w
-16=-16
10=2w
10=2w
2 2
5=w
w=5

what Is the properties for blank 1 and 2

symmetric property
substitution property
addition property
reflexive property
division property