1 4x 5 7 July 8, 2019 16 32 64 128 1 4x =- 5 7x 3x 1 =- 4x 5 7x 6 1 4x 5 6x 7 1 4x 5 2x 7 1 3 4x 5 7 1 7 4x 5 1 7 2x 3 6x 1 3x 5 4x 7 2 4x 5 )= 7x 1 4x 5 7 x 1 7 2 1 4x 5 3 2 5 86 x+1 4x=76 23 1 2 5 7x 8 4x 6 1 7x 13 1 4x 5 2 1 4x )/ 5 7 1 5 4x − 7 )+ 2 5x
