Question

Answer 1

`a)`

`x+ 47790 = 90478`

`x= 90478-47790`

`x= 42688`

`b)`

`x xx 67 = 65191`

`x=65191 : 67`

`x=973`

`c)`

`x xx 45 = 11880`

`x=11880 : 45`

`x=264`

`d)`

`60 + x = 14289`

`x=14289 - 60`

`x=14229`

Answer 2

`x+47790=90478`

`x=90478-57790`

`x=42688`

Vậy `x=42688`

________________________

`x xx 67=65191`

`x=65191:67`

`x=973`

Vậy `x=973`

________________________

`x xx 45=11880`

`x=11880:45`

`x=264`

Vậy `x=264`

________________________

`60+x=14289`

`x=14289-60`

`x=14229`

Vậy `x=14229`