Please help!!

Suzie is five years older than paul. She is 7 years older than peter. The sum of their ages is 21. How old is each person.

1 answer

a+b=36
a=b+30
b+30+b=36
2b+30=36
2b=6
b=3

a=3+30
a=33
Adam is 33, Alyssa is 3