3x 2 x 5 )=- 45 July 8, 2019 16 32 64 128 2 3x 5 )+ x − 5 − 45 3 x 5 )+ 2 3x 1 )= 45 5 x 7 )- 3 3x 2 )= 45 3 x-5=x+3 5 x 7 = 35