6--3=9
15-6=9,
so
24+9=33,
33+9=42,
42+9=51
33,42,51
The unkown side legnth is 9 centimeteres long all you had to do was subtract all the numbers from 44 and what your left with is the unknown side.
Perimeter of a square: side length * 4, since squares have equal side lengths
Take 2x - 3 for the side length and plug it into the formula.
(2x - 3) * 4 can be rewritten as 4(2x - 3)
Distribute 4 inside the parentheses.
8x - 12 = perimeter of the square
The square root of 39 is 6.245. It lies between the whole numbers 7and 8!
