A farmer owns a total of 16 chickens and rabbits. The chickens and rabbits have 54 legs altogether. How many rabbits are there?
r = rabbits legs = 4r
c = chickens = 16 - r legs = 2 (16-r) summed they equal 54
4r + 2 (16-r) = 54 Now....can you solve for 'r' ?