Question

Calcule o valor da expressoes.A)-76-(7-18)+[70-(49-81)]B)-(-2)-7-[-18+4+(7-15)]

Answer 1

A)-76-(7-18)+[70-(49-81)]

-76-(-11)+[70-(-32)]

-76+11+[70+32]

- 65 + 102

37
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B)-(-2)-7-[-18+4+(7-15)]

+ 2-7-[-14+(-8)]

- 5-[-14-8]

- 5 -[-22] ==> - 5 + 22 ==. + 17

Answer 2

Olá !

Vamos calcular

A)
-76-(7-18)+[70-(49-81)]
= -76+11+[70+32]
= -65+102
= 37

B)
-(-2)-7-[-18+4+(7-15)]
= 2-7-[-14+(-8)]
= -5-[-22]
= -5+22
= 17