SOLUTION: In parallelogram ABCD, AB = 31, BC = 20, CD = 5x + 3y, and DA = 3x + 2y. Find the lengths of the sides of the parallelogram.

Question 324992: In parallelogram ABCD, AB = 31, BC = 20, CD = 5x + 3y, and DA = 3x + 2y. Find the lengths of the sides of the parallelogram.
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
I think you mean find x and y since you already know the lengths of the sides.
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AB=CD
BC=DA
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1.
2.
Multiply eq. 1 by -2 and eq. 2 by 3 and add them,

Then use either equation to solve for y,

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