1. 3x=π/2+πn, n∈Z x=π/6+πn/3, n∈Z 2. x/2=-π/4+πn, n∈Z x=-π/2+2πn, n∈Z 3. -4x=π/4+πn, n∈Z x=-π/16+πn/4, n∈Z 4. 3x-π/6=π/6+πn, n∈Z 3x=π/3+πn, n∈Z x=π/9+πn/3, n∈Z 5. π/6-2x=π-π/6+πn -2x=2π/3+πn x=-π/3+πn/2, n∈Z