This problem can be solved in two different ways. I will show and explain both.
Original Equation: 16/c = 8
Solve by multiplying:
1) Multiply each side by c
16 = 8c
2) Divide both sides by 8
c = 2
Solve by cross-multiplying:
1) Cross-multiply
16/c = 8/1
8c = 16
2) Divide both sides by 8
c = 2
Hope this helps! :)