Question

c) ( + 4 ) + ( – 6 ) – ( + 7 ) – ( – 6 ) + ( + 7 ) = d) ( – 3 ) – ( – 5 ) + ( – 6 ) + ( + 8 ) – ( – 4 ) =

Answer 1

Oii!

c) 4

$4 + ( - 6) - 7 - ( - 6) + 7$

$4$

d) 8

$( - 3) - ( - 5) + ( - 6) + 8 - ( - 4)$

$- 3 + 5 - 6 + 8 + 4$

$8$

Espero ter ajudado S2