1. a+15=20 a=? 2. 27+b=49 b=? 3. e - 6=2 e=?
4. f - 58=34 f=? 5. 3k=81k=? 6. 15l=45 l =?
n p q
7. 22m=484 m=? 8. --- =3 n=? 9. ---- =3 p=? 10. ----- =12 q=?
3 2 22