3 7 x 5 9 x 1 2 July 8, 2019 16 32 64 128 9 8 7 x 6 5 x 4 3 2 1 3 7 2x )+ 3 3 5 x )- 9 x 1 3 7 2x 3 3 5 x − 9 x 1 responses 5 x 2 )- 7 x 1 )= 9 3 2x 3 x-5=x+3 5 x 7 = 35
