2 5 x 3 7 =- 4 5
- 7 2 5 3x )= 4 x 3 )+ 5
- (- 7 6 2 5 x (- 4 )-( 3 5
- 3 5x 7 x 4 1 2 5 4x 8
- 4 2 5 x )+ 6 1 5 7 3 5
- 2 5 x 3 7 2 5 x 4 7 1 10
- 4 2x 3 5 )-( 5 2 x (- 7 4 2 )
- Find 2 5 x 3 7 1 4 3 7x3 5
- 2 3 3 4 x 5 7 5 14
- 1 2 x 3 5 4 7 chia 4 5 1 70
- Solve 7 2 5 3x )= 4 x 3 )+ 5
- X 3 7 2x 5 3 4x 2 5 4
- X 5 2 3 2 4 7 dư 0 5
- 22 3 4 * x 7 )/( 2 5 * x 4 5 4
- 5x 3 4 3x 2 5 x 6 7
- 5 x 2 y 4 7 x 3 y 5