Question

simplifique as expressões algébricas:

23,4ab-34,6st-12,9st-23,4ab=

-23,9ab+34,6st-12,9st-23,4ab=

podem me ajudar por favor? ^^

Answer 1

23,4ab - 23,4ab - 34,6st - 12,9st =47.5st ***

-23,9 ab - 23,4ab + 34,6st - 12,9st = 
- 47,3ab + 21.7st *****