An example of a linear equation with three variables, x, y, and z, is given by: ax + by + cz + d = 0, where a, b, c, and d are constants and a, b, and c are non-zero. Linear equations occur frequently in most subareas of mathematics and especially in applied mathematics.
One study has shown that tea tree oil is more active against the organisms associated with transient carriage than against commensal skin flora and thus may be useful in eliminating the transient flora while suppressing but maintaining commensal flora. 21 The rapid kill rate of Clone 88 compared with standard tea tree oil shown for most of the organisms tested in the present study is encouraging and suggests that further clinical studies should be carried out.
Tree tree oil can be used in the following ways: 1  Aromatically: Diffuse tea tree oil throughout your home using an oil diffuser.  Topically: You should always dilute tea tree oil with a carrier oil like coconut oil in a 1:1 ratio before applying it directly to skin. Similarly to tea tree, coconut oil also has its own long list of benefits for skin and immunity, so these two together make an even better combination.