Question

por favor se puder resolver a equação -(3/50)-(+0,75)=

Answer 1

oi!

(( - 3/50)) - ( + 0,75 ) =                                         300]50______

                                                                                      0,06

((-0,06)) - (+ 0,75 ) =

 (-0,06) + ( - 0,75) = - 0,81                                          0,06

                                                                                +  0, 75

                                                                             -------------------

                                                                                    0,81 

bons estudos!

Answer 2

Olá.

Para resolvermos, podemos colocar tudo em modo decimal.
Vamos ter:
$\mathsf{-\left(\dfrac{3}{50}\right)-(0,75)}\\\\\mathsf{-\left(0,06\right)-0,75}\\\\\mathsf{-0,06-0,75}\\\\\boxed{\mathsf{-0,81}}$

Qualquer dúvida, deixe nos comentários.
Bons estudos.