Question

Resolva a espressão 49- {27-4•[6•(20:5•3) : (13-2•5)]}

Answer 1

49- {27-4•[6•(20:5•3) : (13-2•5)]} =
49- {27-4•[6•(4•3) : (13-10)]}=
49- {27-4•[6•12 : 3]}=
49- {27-4•[72 : 3]}=
49- {27-4•24}=
49- {27-96}=
49- {27-96}=
49- {-69}=
49+69 = 118