Question

resolva as operaçoes

A ) (-12) -(+3)-(-20)=
B ) ( +15 )+( 1) + ( -7 ) =
C ) ( +10 )-( -20) =
D ) ( -12) (-9 )+(+1)=

Me ajudaaaaaaaaaaaaaaaaaaaaaa​

Answer 1

Resposta:

a)5

b)10
c)30
d)109

Explicação passo a passo:

A ) (-12) -(+3)-(-20)= (-12-3+20)= 5

B ) ( +15 )+( 1) + ( -7 ) = 10

C ) ( +10 )-( -20) = +10+20 = 30

D ) ( -12) (-9 )+(+1)= 108+1 = 109