Tìm x: a/ x : 3 = 67 482 b/ x + 984 737 = 746 350 + 309 081

a/  x  : 3 = 67482

x = 67482  x 3

x = 202446

b/ x + 984737 = 746350 + 309081

x + 984737 = 1055431

x= 1055431 – 984737

x = 70694