5 2x 7 )= 6x 1
- 6x 5 7 2x 1 3 2
- 3x 1 )( 2x 7 )+( 6x 5 )( 1 3x
- 2x 7 5x 8 3 5 6x )- 12x
- 2x 7 5x 8 3 5 6x )- 12
- 2x 3 )( 5 6x )= 7 3x 10 4x
- - 10 2x 0 7 6x - 5
- 2x 7 6x 5 10 5x 2
- 6x 5 2x 7 180
- 6x 5 7 2x 15 30
- 5 6x 7 )-( 1 2x 6
- 2x 5 6x 7 =- 2 2x 1
- 3x 7 5 2x 13 6x
- 2x 7 5x 3 5 6x )- 12x
- 5 2x 7 )- 3 2x 3 0 2x 19 6x 47
- 5 6x 1 )= 3 (- 7 2x