18.(x-16)=0 (x-15).72=0 (x-32).45=0 (x-35).15=0 (x-45).27=0 (x-29).59=0 (x-41).1000=0

`18.(x-16)=0`

`=>x-16=0`

`=>x=0+16`

`=>x=16`

Vậy `x=16`

_____________________

`(x-15).72=0`

`=>x-15=0`

`=>x=0+15`

`=>x=15`

Vậy `x=15`

_____________________

`(x-32).45=0`

`=>x-32=0`

`=>x=0+32`

`=>x=32`

Vậy `x=32`

______________________

`(x-35).15=0`

`=>x-35=0`

`=>x=0+35`

`=>x=35`

Vậy `x=35`

______________________

`(x-45).27=0`

`=>x-45=0`

`=>x=0+45`

`=>x=45`

Vậy `x=45`

______________________

`(x-29).59=0`

`=>x-29=0`

`=>x=0+29`

`=>x=29`

Vậy `x=29`

______________________

`(x-41).1000=0`

`=>x-41=0`

`=>x=0+41`

`=>x=41`

Vậy `x=41`

Ta có tính chất : 

$\bullet$ Số `0` chia cho bất kì số nào cũng bằng `0`