7x 3x 7 3 x 4 ) 20 July 8, 2019 16 32 64 128 7x 3x 7 3 x 4 )+ 20 5 x 7 = 35 2x 7 7x - 3(4x - 3) = 7(3x + 5) 7 / 3 x 4
