Question

Determine o valor de cada soma algébrica:

A) + 10 + (6 - 4) =

B) 2 + (2 + 5 - 7 ) =

C) - ( 4 + 5 ) - 2 = ​

Answer 1

Resposta:

A)$+ 10 + (6 - 4) = 12 \\ \\ 10 + (6 - 4) \\ 10 + 2 \\ 12$

B)

$2 + (2 + 5 - 7) = 2 \\ \\ 2 +(2 + 5 - 7) \\ 2 + 0 \\ 2$

C)

$- (4 + 5) - 2 = - 11 \\ \\ - (4 + 5) - 2 \\ - 9 - 2 \\ - 11$

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