2x 7 9 =5 4 July 8, 2019 16 32 64 128 4x 9 5 2x 7 )- 6x 4x 9 3 2x 7 5 8 2x+7 + 40 2 x+9 =5 7 2x 5 )= 4x 9 x 9 2x 7 4x 5 2x 7 9 4x 1 5 7 2x 5 4x 11 9 x 6 29 4 2x 7 )- 5 4x 9 4 2x − 7 5 9 3 5x 1 4 3 2x 7 5 9 4x 2x 9 5 x 4 3 2x 7 2x 5 3x 7 4x 9 ) = 66 9 2 5 4x 7 2x 50 2x 7 8 2 9 3x 5 4
