34.2 Chapter 2, Equations of the first order and degree. page 20

34.2.1 problem 1
34.2.2 problem 2
34.2.3 problem 3
34.2.4 problem 4
34.2.5 problem 5
34.2.6 problem 6
34.2.7 problem 7
34.2.8 problem 8
34.2.9 problem 9