Respuesta :

Thezone35
pamela is 43 years old
apologiabiology
p=pamela's age
j=jiri's age

p is 2 times j
p=2j

sum is 87
p+j=87
sub 2j for p since p=2j

2j+j=87
3j+87
divide both sides by 3
j=29

jiri is 29