3 9 2x 7 x 2 3 July 8, 2019 16 32 64 128 2x 7 (- 3 x 2 1 9 )( 3x 5 18 X 3 )( x 2 3x 9 )- 2x x 3 7 X 3 7 )= 2 3 3 2x 9 14 X 3 2x 2 34x 9 )/( x 7 3 2x 9 )- 4 3x 4 )= 2 x 12 )+ 3 7 3 x 3 = 9 2 7+3x=9(x-2 1) 3(2x-7)= 9