4 x 5 )=- 3 x 7 )- 1
- 4 x 5 )- 3 x 7 )=- 19
- 4 x 3 )- 5 7 x 1 )+ 9
- 4 3 x 5 2 x 7 15
- 4 3 5 x 7 1 2
- (- 4 x 7 5 x (- 3 4 7 15
- 1 12 4 3x 5 3 x 7 4
- 5 4x 3 )- 7 3x 1 )= x
- X 4 x 5 x 6 x 7 10 3
- X 3 5 x 4 7 6 2x 1 35
- 5 x 7 )= 3 x 4 )- 13
- 1 4 )( x 12 5 2 3 x 7
- 4 x 5 )+ 2 x 9 )= 3 x 7 )- 1
- 4 x 3 )- 5 x 2 )= 7 3x 1 )+ 29
- 4 1 2 x )- 5 x 3 10 )= 7 4
- 4 5 x 3 x 7 x 15 by 16 into 14.9