Question

Resolva as expressões abaixo:
(A) 10+{8+(15-11)-10}+1
(B) 15-{2-(3-5+1)-6}-1

Answer 1

a) 10 + { 8 + ( 15 - 11 ) - 10 } + 1 =
= 10 + { 8 + 4 - 10 } + 1
= 10 + { 12-10 } + 1
= 10 + 2 + 1
= 13

b) 15 - { 2 - ( 3 - 5 + 1 ) - 6 } - 1 =
= 15 - { 2 - ( -1 ) - 6 } - 1
= 15 - { 2 + 1 - 6 } - 1
= 15 - { -3 } - 1
= 15 + 3 - 1
= 17