Question

( +105 ) + ( +105 ) =

( -25 ) + ( -25 ) =

( -280 ) + ( -509 ) =

Answer 1

Resposta:

210

-50

-789

Explicação passo-a-passo:

Answer 2

Resposta:

( +105 ) + ( +105 ) = +210

( -25 ) + ( -25 ) = -25 - 25 = -50

( -280 ) + ( -509 ) = -280 - 509 = -789