Question

Elimine os parênteses e calcule:  a) ( - 35 ) – ( - 72 ) = b) ( + 35 ) – ( - 72 ) = c) ( - 35 ) – ( + 72 ) = d) ( + 35 ) – ( + 72 ) = e) ( - 15 ) – ( - 122 ) + 99 – ( - 78 ) =

Answer 1

A=    +37

B=      +107

C=     -107

D=      -37

E=      +284