2 5x 3 )- 1 7x 2
- 3x x 1 )- 2x 5x 3 )= 7x 2 x )+ 34
- 3x x 1 )- 2x 5x 3 7x 2 x )+ 4
- 5x 3 4x 1 )= 7 2 7x 2
- 2x 3 7x 2 5x 1 0
- 7x 2 5x 3 )- 4 2 3x )= 1
- 5x 3 7x 1 )(- 2x 2 3x 9
- 12 5x 2 3 1 1 2x )+ 7x
- 2x 3 5x 2 7x 1
- 2 1 5x )- 3 7x 1 )= 2 5 2x )- 9
- 4x 5x 2 1 7x 3 8x 2
- 2x 3 7x 2 5x 4 2x 1
- 7 5x 2 x 3 3 1 4x 3 7x 2
- 2 x 3 )+ 7x x 1 )= 5x 2 9
- 7x 2 5x 3 )+( 2x 2 3x 1