1) 4x 1 7 July 8, 2019 16 32 64 128 1 4x 1 7 8 1 4x 1 7 1 4x 7 1 3x 2 1 4x 1 2 7 1 4x 1 6x x 7 1 5 1 4x ) - 7 1 3x 1 4x 7 2 1 4x 7 )= 1 3x 4 1 2x 1 4x 1 7x 3 x 5 1 4x 7 1 6x 1 4x 1 2x 3 7 1 4x 5 1 2x 7 3 4x 1 7 1 2
