X 3 4 2x 1 2
- X 3 4 2x 1 2 5
- X 3 4 2x 1 3 3x 1 2 0
- 3 x 4 2 (- 2x 1 0
- 3 4 2x )- 2 1 x )= 8 5x
- 3 x 2 )+ 4 2x 1 )= 6x 20
- 3 x 4 )+ 1 2 2x 7
- 2 x 4 )- 3 2x 1 )=- 3x 5
- 4 2x 1 )- 3 x 2 )= 10 5x
- 3 x 4 )- 2 5 2x 1 )- 6
- 5x 2 x 3 )=- 4 1 2x
- X 3 4 x 1 2 2x 1 8
- 2 x 4 )/ 3 4 2x 1 )/ 15
- 3x 3 x )( 4x 4 2x 2 1
- X 4 4x 3 2x 2 1
- X 4 2x 3 3x 2 1