Question

-(-3ab+6ab-20)-7ab+18ab+15= me ajudammmmmmmmmm?

Answer 1

  - (-3ab + 6ab - 20) - 7ab + 18ab + 15 =

= 3ab - 6ab + 20 - 7ab + 18ab + 15 =

= 3ab - 6ab - 7ab + 18ab + 15 + 20 =

= 8ab + 35

Answer 2

Explicação passo-a-passo:

-(-3ab+6ab-20)-7ab+18ab+15=

3ab-6ab+20-7ab+18ab+15=

3a-6ab-7ab+18ab+15+20=

(-3+11).ab+35=

(8).ab+35= 8ab+35

espero ter ajudado!

bom dia !