Question

resolva as expressões:
a)(-9)+(+5)-(10)=
b)(+0,5)-(+4)+(-2,7)=
com cálculos obrigado e boa tarde!!!

Answer 1

A)
$( - 9) + ( + 5) - (10)$
$- 9+ 5 - 10$
$- 19 + 5$
$- 14$

B)
$( + 0.5) -( + 4) + ( - 2.7)$
$0.5 - 4 - 2.7$
$0.5 - 6.7$
$- 6.2$