1 7 x 2 2x 3 7 x 1 July 8, 2019 16 32 64 128 13 /( x 3 )( 2x 7 )+ 1 2x 7 6 x 2 9 Phương trình 1 7 x 2 2x 3 7 x 1 2 x 7 1 15 or 3 x 2 2x 7 1) 7 - x/2 = 3 + (7x)/2 1 7 x 2 3 1) 2(x - 3) = 7(2 + x) 1) 2x + 7 1 x-3 1 1) x + 2 7 = 3
