2 (- 2x 1 )= 3 6 x
- X 5 2 2x 1 3 6
- 2 5x 3 )- 6 2x 1 )= 3 x 14
- X 1 4 2 1 2x 3 6
- 3x 2 8 2x 1 3 5 x 6
- 3x 2 )( 2x 3 )- 6 x 1 2 5
- 3 2x 1 1 6 x 2 9
- 2x 1 3 5x 1 6 x 1 2
- 2 (- 2x 4 )+ 6 5 3 x 1
- 7 x 3 2 2x 6 x 1 7x
- 2 3x 3 x 1 )=- 2x 1 3 6 x
- 3x 2 4 2x 5 3 1 x 6
- 2x 1 3 5x 3 2 7 x 6
- X 3 2 2x 1 2 3x 4 6 x
- X 2 3 3 2x 1 )/ 4 5x 3 6 x 5 12
- 1 2x 4x 6 )+ 3 x 2 1