Question

Calcula
b: 2+{-]-(7+8)+(4-3)]-2}

c: -[5-(4-7)-(2-3)]

d: -(7-3)-(5-2)-[(12-6)-(9-5)]

Answer 1

Respuesta:

b=14; c=-9; d=-9

Explicación paso a paso:

b: 2+{-[-(7+8)+(4-3)]-2}

   2+{-[-(15)+(1)]-2}

   2+{-[-15+1]-2}

   2+{-[-14]-2}

   2+{+14-2}

   2+{12}

   2+12

   14

c: -[5-(4-7)-(2-3)]

   -[5-(-3)-(-1)]

   -[5+3+1]

   -[9]

   -9

d: -(7-3)-(5-2)-[(12-6)-(9-5)]

   -(4)-(3)-[(6)-(4)]

   -4-3-[6-4]

   -4-3-6+4

   -9