1 4x 9 1 2x 8 July 8, 2019 16 32 64 128 2x 8x 1 2 4x 1 )= 9 9 1 2x 1 3 4x 87 2x 8x 1 )( 4x 1 )= 9 9 x 8 = 1) 9x − 8 = 4x + 12
