3 7 4x = 1 July 8, 2019 16 32 64 128 3 7 + 4x = 1 3 4x 7 1 2x 3 4x 7 )= 10 x 5 3 4x 7 1 2 7 3 4x 16 3 4x 7 15 3 2 7 4x 1 3x 3 4x 7 )- 4 12x 15 5 3 4x 7 12 3 4x 7 )- 4 12x 15 simplified 3 4x 1 )= 7 2x 5 7 4x 3 )- 15 482 3 x 7 2 4x 1 3 4x 7 )- 2 5x 1 9 3 4x 7 7 11
