Question

Упростите выражение:
1)5m+7m
2)6n+3n+n
3)9y-3y-y

Answer 1

1)5m+7m = 12m
2)6n+3n+n = 10 n
3)9y-3y-y = 5y

Answer 2

1) m(5+7)=12m
2)n(6+3+1)=10n
3)y(9-3-1)= 5y