Question

Can you solve this ?
_+_+_=60
_+_+_=30
_-_=3
_+_+_=?

Answer 1

20+20+20=60
10+10+10=30
4-1=3
1+1+1=3

Answer 2

20+20+20=60
10+10+10=30
4-1=3
20+10+3=33