Below is an instruction that describes a task. Write a response that appropriately completes the request in Swahili. Please answer in Swahili.

### Instruction:
 40 less than 10 times Diaz's age is 20 more than 10 times Sierra's age. If Sierra is currently 30 years old, how old will Diaz be 20 years from now?


### Response:
 Ikiwa Sierra ana umri wa miaka 30, mara 10 ya umri wake ni 30*10=<<30*10=300>>300
Ikiwa naongeza 20 kwenye mara 10 ya umri wa Sierra, inakuwa 300+20=320
Tuchukulie umri wa Diaz kuwa x
40 chini ya mara 10 ya umri wa Diaz ni 10*x-40=320
Kwa kusuluhisha equation: 10*x=360
x=<<36=36>>36 miaka, umri wa Diaz.
Miaka 20 kutoka sasa, Diaz atakuwa na umri wa 20+36=<<20+36=56>>56 miaka.