Question

13) Calcule: 8 – ( -6 + 10 ) = c) -5 + ( 2 – 4 ) – ( 7 – 1 )= -10 + ( 6 - 4 ) = d) ( -5 + 3 ) – ( 5 – 9 ) + ( 8 – 1 ) – 11 =

Answer 1

Resposta:

Explicação passo-a-passo:

b) 8 – ( -6 + 10 ) =

$8-(4)\\\boxed{\boxed{4}}$

c) -5 + ( 2 – 4 ) – ( 7 – 1 ) -10 + ( 6 - 4 )=

$-5 -2 -6 -10 + 2 \\-7-16+2\\-23+2\\\boxed{\boxed{-21}}$

d) ( -5 + 3 ) – ( 5 – 9 ) + ( 8 – 1 ) – 11 =

$-2 - ( -4 ) + ( 7 ) -11\\-2+4+7-11\\2-4\\\boxed{\boxed{-2}}$