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

### Instruction:
Lorin has 4 black marbles. Jimmy has 22 yellow marbles. Alex had twice as many black marbles as Lorin and one half as many yellow marbles as Jimmy. How many marbles does Alex have?

### Response:
 Alex alikuwa na mabulinge meupe mara mbili ya Lorin (ambaye alikuwa na mabulinge meupe 4) kwa jumla ya mabulinge meupe 2*4 = <<8=8>>8.
Alex alikuwa na nusu ya mabulinge ya manjano ya Jimmy (ambaye alikuwa na mabulinge ya manjano 22) kwa jumla ya mabulinge ya manjano 22/2 = <<22/2=11>>11.
Alex alikuwa na mabulinge meupe 8 na mabulinge ya manjano 11 kwa jumla ya mabulinge 8+11 = <<8+11=19>>19.