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

### Instruction:
Jerome bought 5 new toy cars last month. This month he bought twice as many so that he has 40 toy cars now. How many toy cars did Jerome have originally?

### Response:
 Jerome alinunua magari ya kuchezea 5 x 2 = <<5*2=10>>10 mwezi huu.
Hivyo, alinunua jumla ya magari ya kuchezea 5 + 10 = <<5+10=15>>15.
Kwa hiyo, Jerome alikuwa na magari ya kuchezea 40 - 15 = <<40-15=25>>25 awali.