Question

simplify: [18-(-3)]+[(-7)-9].

Answer 1

18+3+-16
21-16
=4
hope this helps you

Answer 2

$\large\bold{\boxed{Solution :}}$

$= [18 + 3] + [ - 7 - 9]$

$= 21 + [ - 16]$

$= 21 - 16$

$= 5$

$\red{I \: \: hope \: \: it \: \: will \: \: help \: \: you}$