Question

Resolva as seguintes expressões.
a) 14-(-10+5+3)
b) -15+[-4-(-5+20)]}
c) 20-{-10+[+20-(-20+10)]}
d) -12+(-6)-(-8-5)

Answer 1

Opa, beleza colega!?

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Resposta:

A) 14 - ( -10 + 5 + 3)

14 - ( -10 +8)

14 - ( -2)

14 + 2

16

B) -15 +[ -4 - ( - 5 + 20 ) ]

-15 + [ - 4 - (+ 15) ]

-15 + [ -4 -15 ]

-15 + [- 20]

-35

C) 20 - { -10 + [ + 20 - ( -20 + 10 ) ] }

20 - { -10 + [ + 20 - ( -10 ) ] }

20 - { -10 + [ + 20 +10 ] }

20 - { -10 +30 }

20 - 20

0

D) -12 + ( -6) - ( -8 -5)

-12 - 6 - ( -13 )

-12 - 6 + 13

-12 + 7

-5

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•ASHELEY•