|There are 28 people and 35 dogs.
First, since dogs and people both have 2 eyes,
divide 126 by 2. There are 63 at the dog show.
You know that dogs have two more legs than humans.
There are 70 more legs than eyes. Half of 70 is
35. Subtract 63-35=28. So there could be 35 dogs
and 28 people. (or 28 dogs and 35 people) To check
if there are 35 dogs, multiply 4x35=140 then add
28x2=56 for the number of human legs. 140+56=196.
– Guess and check