Respuesta :
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
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