3 3x 5 )= 2x 20 July 8, 2019 16 32 64 128 3 3x 4 )- 2x 5 7x 20 2 4 3x )+ 5 2x 3 )= 20 5x 3 2x 14 )+ 20 6 3x 5 )- 28 2x 5 3 4 3x 20 3 x-5=x+3
