Question

решите пожалуйста
3m-2m+5m
5n-3+n+6
5pg+k-7pg-k
4a-5b+5b+4a

Answer 1

3m-2m+5m=6m
5n-3+n+6=6n+3
5pg+k-7pg-k=-2pg
4a-5b+5b+4a=8a