X 3 5 4 7 2 8 July 8, 2019 16 32 64 128 1 2 3 x 4 5 6 7 8 2 3 x 4 5 x 6 7 x 8 9 X 2 3 x 5 4 x 5 6 x 7 8 7 1 2 5 3 4 x 8 0 20 3 2 x 5 8 7 4 bằng bao nhiêu 5 x 7 = 35 3 x-5=x+3 - 5(7 - x) - 4(x - 8) = 3 5) (3 - x)/2 + x/4 7
