13 5 x 1 7 July 8, 2019 16 32 64 128 13 1 x 5 8 1 7 5 x 1 )- 7x - 13 5 x 1 )- 2 x 7 )= 13 13 2 1 x )= 8x 5 x 7 1 5 9 13 x 780 solve the equation 7 x 6 )+ 5 x 1 )=- 13 5 1 7 x 2.8 13 13 5 x 7 13/5 x 5 5 13 7 - * 13 5 x
