Question

33. Calcula

a. -5- (+11)-(-20)
b. - 7 - [(-3) - (-9)]
c. +8-[(+5)-(-9)]
d. -(-3) + {(-5) - [{+8)+ (-10)]}​

Answer 1

Respuesta:

a=4

b=1

c=-6

d=0

Explicación paso a paso:

a)-5- (+11)-(-20) = -5 -11 +20 = -16+20=4

b. - 7 - [(-3) - (-9)] = -7 - (-3+9)=-7 - 6 = 1

c. +8-[(+5)-(-9)] = +8-(5+9)=+8-14=-6

d. -(-3) + {(-5) - [{+8)+ (-10)]}​ = +3 + {-5-(+8-10)}= +3+{-5-(-2)} = +3+(-5+2)

=+3+(-3) = 0