Sound or vibration wave that is conducted
The are 8 blue bicycles, 6 green bicycles, and 4 yellow bicycles and total they equal 18.
Y = 3/4x - 5/2....subtract 3/4x from both sides
-3/4x + y = -5/2 ....multiply everything by common denominator of 4
-3x + 4y = -10
