In a parallelogram one side is 5x-4 and the consecutive side 2x+3. If the perimeter is 166cm, find the lengths of the sides.

5x - 4 = 56

2x + 3 = 27

Step-by-step explanation:

2 (5x - 4 + 2x + 3) = 166

10x - 8 + 4x + 6 = 166

14x - 2 = 166

+ 2 + 2

14x = 168

divide both sides of the equal sign by 14

12

5 (12) - 4 = 60 - 4 = 56

2 (12) + 3 = 24 + 3 = 27