Question

4057 + x : 38 = 20395

35320 - x nhân  72 = 13072

Answer 1

x:38=20395-4057

x:38=16338

x=16338.38

x=620844

x.72=35320-13072

x.72=22248

x=22248:72

x=309

Answer 2

4057 + x : 38 = 20395

x : 38 = 20395 - 4057

x : 38= 16338 

x  =16338 x 38

x = 620844

 

35320 - x nhân  72 = 13072

x x 72 = 35320-13072

x x 72 = 22248

x = 22248 : 72

x = 309

Answer 3

a: =>x:38=16338

hay x=620844

b: =>72x=22248

hay x=309