Question 614528
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Hi,
One side of a square is 3x + 2 feet long.  Another side is 5x - 8 feet long. 
How long is each side of the square?  Note: all sides of a square are of equal length
  3x + 2 = 5x - 8
Solving for x
      10 = 2x
       5 = x
And 3x+2 = 17, the length of each side of the square 
CHECKING our Answer***
(Note: 5x-8 = 17 as well)