Find the value of the variabels and the side lengths

Question

anonymous · Answer

attachment

hartnn · Answer

adjacent lengths are given to be equal
2x+5 = x+12
can you find x from here ?

anonymous · Answer

x=7?

hartnn · Answer

yes! good :) 
now from y-4 = x+5
you will also get value of y :)

anonymous · Answer

Since the sides are equal
We know that
    2x + 5  =  x + 12                        and   y -4 = x+ 5

Using the first equation  solve for x
Subtracting x from both sides and subtracting 5 from both sides 
      x = 7

Now using x = 7  in the 2nd equation
   y - 4  = 7 + 5  = 12
 so adding 4 to both sides
    y = 16

so the sides are 19, 19 ,12, 12          |dw:1386690018584:dw|

anonymous · Answer

Thanks @VAlb That makes a lot of sense... if you could check out my other question that would be great