X 3 1 5x 2 5 3x 3 July 8, 2019 16 32 64 128 X 2 3 4 5x 2 3x 5 4 1 3 5 2 7 x 3 )= 1 3 5 5x 2 )+ 3x 2 3 x-5=x+3