Question

1. Simplifique as expressões :

A) (4-5) - (3-4) - (4+2)

B) (3-4) + (5-2) + (3-4)

C) (4-5) (6+11) - (3-2)

Preciso das expressões todas resolvidas, com resultado e tudo! Obrigada

Answer 1

A) 4-5 = -1 -(-1) = 0 - 6 = -6
B) 3-4 = -1 + 3 = 2 +(-1) = 1
C) -1 x 17 - 1 = -17 -1 = -18

Answer 2

1. Simplifique as expressões :A) (4-5) - (3-4) - (4+2) ==> (-1)-(-1)-6 ==> -1+1-6==>  - 6

B) (3-4) + (5-2) + (3-4) ==> - 1 + 3 - 1==. + 1

C) (4-5) (6+11) - (3-2) ==> (-1).(+17) -1 ==> - 17 -1 ==> - 18