3 x 7 ) 2 2x 1
- 3 x 7 )+ 2 2x 1
- 3 7 3x )+ 8 2 2x )= 12
- 3x 7 2 2x 1
- 3x 3 9x 7 )( x 2 2x 1
- 5 x 7 2 3 2x 14
- 3x 7 5 x 2 )-( 2x 1
- 2x 1 3 x 7 2 5
- 3 x 7 )-( 9 2x )= 2 12 x )-( x 10
- 1 3 x 2 2x 7 4
- 4 x 2 7 8x 3 2x /- 10
- 7 x 2 2x 3 1 x 2 5x 6
- 3 x 2 )- 7 2x 14
- 3 x 2 )- 2x 1 )= 7 verify
- 3 x 2 )- 2x 1 )= 7 solution
- 3 x 2 )- 2x 1 )= 7 formula